diff --git a/erb/v1/cpp03_define_array.hpp.erb b/erb/v1/cpp03_define_array.hpp.erb
index cd25214e9..6e3c3c0fe 100644
--- a/erb/v1/cpp03_define_array.hpp.erb
+++ b/erb/v1/cpp03_define_array.hpp.erb
@@ -75,7 +75,7 @@ struct define_array<A0<%1.upto(i) {|j|%>, A<%=j%><%}%>> {
     void msgpack_object(msgpack::object* o, msgpack::zone& z) const
     {
         o->type = msgpack::type::ARRAY;
-        o->via.array.ptr = static_cast<msgpack::object*>(z.allocate_align(sizeof(msgpack::object)*<%=i+1%>));
+        o->via.array.ptr = static_cast<msgpack::object*>(z.allocate_align(sizeof(msgpack::object)*<%=i+1%>, MSGPACK_ZONE_ALIGNOF(msgpack::object)));
         o->via.array.size = <%=i+1%>;
         <%0.upto(i) {|j|%>
         o->via.array.ptr[<%=j%>] = msgpack::object(a<%=j%>, z);<%}%>
diff --git a/erb/v1/cpp03_define_map.hpp.erb b/erb/v1/cpp03_define_map.hpp.erb
index f7460554d..1440406eb 100644
--- a/erb/v1/cpp03_define_map.hpp.erb
+++ b/erb/v1/cpp03_define_map.hpp.erb
@@ -82,7 +82,7 @@ struct define_map<A0<%1.upto(i) {|j|%>, A<%=j%><%}%>> {
     void msgpack_object(msgpack::object* o, msgpack::zone& z) const
     {
         o->type = msgpack::type::MAP;
-        o->via.map.ptr = static_cast<msgpack::object_kv*>(z.allocate_align(sizeof(msgpack::object_kv)*<%=(i+1)/2%>));
+        o->via.map.ptr = static_cast<msgpack::object_kv*>(z.allocate_align(sizeof(msgpack::object_kv)*<%=(i+1)/2%>, MSGPACK_ZONE_ALIGNOF(msgpack::object_kv)));
         o->via.map.size = <%=(i+1)/2%>;
         <%0.step(i,2) {|j|%>
         o->via.map.ptr[<%=j/2%>].key = msgpack::object(a<%=j%>, z);
diff --git a/erb/v1/cpp03_msgpack_tuple.hpp.erb b/erb/v1/cpp03_msgpack_tuple.hpp.erb
index 3cf624b7f..c4b4a9f72 100644
--- a/erb/v1/cpp03_msgpack_tuple.hpp.erb
+++ b/erb/v1/cpp03_msgpack_tuple.hpp.erb
@@ -207,7 +207,7 @@ struct object_with_zone<type::tuple<A0<%1.upto(i) {|j|%>, A<%=j%><%}%>> > {
         msgpack::object::with_zone& o,
         const type::tuple<A0<%1.upto(i) {|j|%>, A<%=j%><%}%>>& v) const {
         o.type = msgpack::type::ARRAY;
-        o.via.array.ptr = static_cast<msgpack::object*>(o.zone.allocate_align(sizeof(msgpack::object)*<%=i+1%>));
+        o.via.array.ptr = static_cast<msgpack::object*>(o.zone.allocate_align(sizeof(msgpack::object)*<%=i+1%>, MSGPACK_ZONE_ALIGNOF(msgpack::object)));
         o.via.array.size = <%=i+1%>;
         <%0.upto(i) {|j|%>
         o.via.array.ptr[<%=j%>] = msgpack::object(v.template get<<%=j%>>(), o.zone);<%}%>
diff --git a/erb/v1/cpp03_zone.hpp.erb b/erb/v1/cpp03_zone.hpp.erb
index ad74b7d6e..f4f85c9be 100644
--- a/erb/v1/cpp03_zone.hpp.erb
+++ b/erb/v1/cpp03_zone.hpp.erb
@@ -300,7 +300,7 @@ inline std::size_t aligned_size(
 template <typename T<%1.upto(i) {|j|%>, typename A<%=j%><%}%>>
 T* zone::allocate(<%=(1..i).map{|j|"A#{j} a#{j}"}.join(', ')%>)
 {
-    void* x = allocate_align(sizeof(T));
+    void* x = allocate_align(sizeof(T), MSGPACK_ZONE_ALIGNOF(T));
     try {
         m_finalizer_array.push(&zone::object_destruct<T>, x);
     } catch (...) {
diff --git a/example/cpp03/class_non_intrusive.cpp b/example/cpp03/class_non_intrusive.cpp
index c5ada1069..8226f845f 100644
--- a/example/cpp03/class_non_intrusive.cpp
+++ b/example/cpp03/class_non_intrusive.cpp
@@ -69,7 +69,7 @@ struct object_with_zone<my_class> {
         o.type = type::ARRAY;
         o.via.array.size = 2;
         o.via.array.ptr = static_cast<msgpack::object*>(
-            o.zone.allocate_align(sizeof(msgpack::object) * o.via.array.size));
+            o.zone.allocate_align(sizeof(msgpack::object) * o.via.array.size, MSGPACK_ZONE_ALIGNOF(msgpack::object)));
         o.via.array.ptr[0] = msgpack::object(v.get_name(), o.zone);
         o.via.array.ptr[1] = msgpack::object(v.get_age(), o.zone);
     }
diff --git a/include/msgpack/adaptor/tr1/unordered_map.hpp b/include/msgpack/adaptor/tr1/unordered_map.hpp
index 62e77c11f..9c8190e85 100644
--- a/include/msgpack/adaptor/tr1/unordered_map.hpp
+++ b/include/msgpack/adaptor/tr1/unordered_map.hpp
@@ -84,7 +84,7 @@ struct object_with_zone<MSGPACK_STD_TR1::unordered_map<K, V, Hash, Pred, Alloc>
             o.via.map.size = 0;
         } else {
             uint32_t size = checked_get_container_size(v.size());
-            msgpack::object_kv* p = static_cast<msgpack::object_kv*>(o.zone.allocate_align(sizeof(msgpack::object_kv)*size));
+            msgpack::object_kv* p = static_cast<msgpack::object_kv*>(o.zone.allocate_align(sizeof(msgpack::object_kv)*size, MSGPACK_ZONE_ALIGNOF(msgpack::object_kv)));
             msgpack::object_kv* const pend = p + size;
             o.via.map.ptr  = p;
             o.via.map.size = size;
@@ -141,7 +141,7 @@ struct object_with_zone<MSGPACK_STD_TR1::unordered_multimap<K, V, Hash, Pred, Al
             o.via.map.size = 0;
         } else {
             uint32_t size = checked_get_container_size(v.size());
-            msgpack::object_kv* p = static_cast<msgpack::object_kv*>(o.zone.allocate_align(sizeof(msgpack::object_kv)*size));
+            msgpack::object_kv* p = static_cast<msgpack::object_kv*>(o.zone.allocate_align(sizeof(msgpack::object_kv)*size, MSGPACK_ZONE_ALIGNOF(msgpack::object_kv)));
             msgpack::object_kv* const pend = p + size;
             o.via.map.ptr  = p;
             o.via.map.size = size;
diff --git a/include/msgpack/adaptor/tr1/unordered_set.hpp b/include/msgpack/adaptor/tr1/unordered_set.hpp
index fcc76f3f0..dd6c0448f 100644
--- a/include/msgpack/adaptor/tr1/unordered_set.hpp
+++ b/include/msgpack/adaptor/tr1/unordered_set.hpp
@@ -82,7 +82,7 @@ struct object_with_zone<MSGPACK_STD_TR1::unordered_set<T, Hash, Compare, Alloc>
             o.via.array.size = 0;
         } else {
             uint32_t size = checked_get_container_size(v.size());
-            msgpack::object* p = static_cast<msgpack::object*>(o.zone.allocate_align(sizeof(msgpack::object)*size));
+            msgpack::object* p = static_cast<msgpack::object*>(o.zone.allocate_align(sizeof(msgpack::object)*size, MSGPACK_ZONE_ALIGNOF(msgpack::object)));
             msgpack::object* const pend = p + size;
             o.via.array.ptr = p;
             o.via.array.size = size;
@@ -136,7 +136,7 @@ struct object_with_zone<MSGPACK_STD_TR1::unordered_multiset<T, Hash, Compare, Al
             o.via.array.size = 0;
         } else {
             uint32_t size = checked_get_container_size(v.size());
-            msgpack::object* p = static_cast<msgpack::object*>(o.zone.allocate_align(sizeof(msgpack::object)*size));
+            msgpack::object* p = static_cast<msgpack::object*>(o.zone.allocate_align(sizeof(msgpack::object)*size, MSGPACK_ZONE_ALIGNOF(msgpack::object)));
             msgpack::object* const pend = p + size;
             o.via.array.ptr = p;
             o.via.array.size = size;
diff --git a/include/msgpack/v1/adaptor/array_ref.hpp b/include/msgpack/v1/adaptor/array_ref.hpp
index b5d7304f1..f81df47c0 100644
--- a/include/msgpack/v1/adaptor/array_ref.hpp
+++ b/include/msgpack/v1/adaptor/array_ref.hpp
@@ -253,7 +253,7 @@ struct object_with_zone<msgpack::type::array_ref<T> > {
         }
         else {
             uint32_t size = checked_get_container_size(v.size());
-            msgpack::object* p = static_cast<msgpack::object*>(o.zone.allocate_align(sizeof(msgpack::object)*size));
+            msgpack::object* p = static_cast<msgpack::object*>(o.zone.allocate_align(sizeof(msgpack::object)*size, MSGPACK_ZONE_ALIGNOF(msgpack::object)));
             msgpack::object* const pend = p + size;
             o.via.array.ptr = p;
             o.via.array.size = size;
@@ -280,7 +280,7 @@ struct object_with_zone<msgpack::type::array_ref<T[N]> > {
         if (!v.data) { throw msgpack::type_error(); }
         o.type = msgpack::type::ARRAY;
         uint32_t size = checked_get_container_size(v.size());
-        msgpack::object* p = static_cast<msgpack::object*>(o.zone.allocate_align(sizeof(msgpack::object)*size));
+        msgpack::object* p = static_cast<msgpack::object*>(o.zone.allocate_align(sizeof(msgpack::object)*size, MSGPACK_ZONE_ALIGNOF(msgpack::object)));
         msgpack::object* const pend = p + size;
         o.via.array.ptr = p;
         o.via.array.size = size;
diff --git a/include/msgpack/v1/adaptor/boost/fusion.hpp b/include/msgpack/v1/adaptor/boost/fusion.hpp
index 29c288ba5..9e46b1abc 100644
--- a/include/msgpack/v1/adaptor/boost/fusion.hpp
+++ b/include/msgpack/v1/adaptor/boost/fusion.hpp
@@ -132,7 +132,7 @@ struct object_with_zone<T, typename msgpack::enable_if<boost::fusion::traits::is
     void operator()(msgpack::object::with_zone& o, const T& v) const {
         uint32_t size = checked_get_container_size(boost::fusion::size(v));
         o.type = msgpack::type::ARRAY;
-        o.via.array.ptr = static_cast<msgpack::object*>(o.zone.allocate_align(sizeof(msgpack::object)*size));
+        o.via.array.ptr = static_cast<msgpack::object*>(o.zone.allocate_align(sizeof(msgpack::object)*size, MSGPACK_ZONE_ALIGNOF(msgpack::object)));
         o.via.array.size = size;
         uint32_t count = 0;
         boost::fusion::for_each(v, with_zone_imp(o, count));
diff --git a/include/msgpack/v1/adaptor/carray.hpp b/include/msgpack/v1/adaptor/carray.hpp
index c023233b8..323ece009 100644
--- a/include/msgpack/v1/adaptor/carray.hpp
+++ b/include/msgpack/v1/adaptor/carray.hpp
@@ -151,7 +151,7 @@ struct object_with_zone<T[N]> {
     void operator()(msgpack::object::with_zone& o, const T(&v)[N]) const {
         uint32_t size = checked_get_container_size(N);
         o.type = msgpack::type::ARRAY;
-        msgpack::object* ptr = static_cast<msgpack::object*>(o.zone.allocate_align(sizeof(msgpack::object) * size));
+        msgpack::object* ptr = static_cast<msgpack::object*>(o.zone.allocate_align(sizeof(msgpack::object) * size, MSGPACK_ZONE_ALIGNOF(msgpack::object)));
         o.via.array.ptr = ptr;
         o.via.array.size = size;
         const T* pv = v;
diff --git a/include/msgpack/v1/adaptor/cpp11/array.hpp b/include/msgpack/v1/adaptor/cpp11/array.hpp
index 1c01e3e09..1a5ba36bb 100644
--- a/include/msgpack/v1/adaptor/cpp11/array.hpp
+++ b/include/msgpack/v1/adaptor/cpp11/array.hpp
@@ -119,7 +119,7 @@ struct object_with_zone<std::array<T, N>> {
             o.via.array.size = 0;
         } else {
             uint32_t size = checked_get_container_size(v.size());
-            msgpack::object* p = static_cast<msgpack::object*>(o.zone.allocate_align(sizeof(msgpack::object)*size));
+            msgpack::object* p = static_cast<msgpack::object*>(o.zone.allocate_align(sizeof(msgpack::object)*size, MSGPACK_ZONE_ALIGNOF(msgpack::object)));
             o.via.array.size = size;
             o.via.array.ptr = p;
             for (auto const& e : v) *p++ = msgpack::object(e, o.zone);
diff --git a/include/msgpack/v1/adaptor/cpp11/forward_list.hpp b/include/msgpack/v1/adaptor/cpp11/forward_list.hpp
index 395a1ff1f..c207c0472 100644
--- a/include/msgpack/v1/adaptor/cpp11/forward_list.hpp
+++ b/include/msgpack/v1/adaptor/cpp11/forward_list.hpp
@@ -76,7 +76,7 @@ struct object_with_zone<std::forward_list<T, Alloc>> {
             uint32_t size = checked_get_container_size(std::distance(v.begin(), v.end()));
             o.via.array.size = size;
             msgpack::object* p = static_cast<msgpack::object*>(
-                o.zone.allocate_align(sizeof(msgpack::object)*size));
+                o.zone.allocate_align(sizeof(msgpack::object)*size, MSGPACK_ZONE_ALIGNOF(msgpack::object)));
             o.via.array.ptr = p;
             for(auto const& e : v) *p++ = msgpack::object(e, o.zone);
         }
diff --git a/include/msgpack/v1/adaptor/cpp11/tuple.hpp b/include/msgpack/v1/adaptor/cpp11/tuple.hpp
index 5fad147b1..08b14f5c4 100644
--- a/include/msgpack/v1/adaptor/cpp11/tuple.hpp
+++ b/include/msgpack/v1/adaptor/cpp11/tuple.hpp
@@ -158,7 +158,7 @@ struct object_with_zone<std::tuple<Args...>> {
         std::tuple<Args...> const& v) const {
         uint32_t size = checked_get_container_size(sizeof...(Args));
         o.type = msgpack::type::ARRAY;
-        o.via.array.ptr = static_cast<msgpack::object*>(o.zone.allocate_align(sizeof(msgpack::object)*size));
+        o.via.array.ptr = static_cast<msgpack::object*>(o.zone.allocate_align(sizeof(msgpack::object)*size, MSGPACK_ZONE_ALIGNOF(msgpack::object)));
         o.via.array.size = size;
         StdTupleToObjectWithZone<decltype(v), sizeof...(Args)>::convert(o, v);
     }
diff --git a/include/msgpack/v1/adaptor/cpp11/unordered_map.hpp b/include/msgpack/v1/adaptor/cpp11/unordered_map.hpp
index b4de2df5b..bcd8fddc9 100644
--- a/include/msgpack/v1/adaptor/cpp11/unordered_map.hpp
+++ b/include/msgpack/v1/adaptor/cpp11/unordered_map.hpp
@@ -81,7 +81,7 @@ struct object_with_zone<std::unordered_map<K, V, Hash, Compare, Alloc>> {
             o.via.map.size = 0;
         } else {
             uint32_t size = checked_get_container_size(v.size());
-            msgpack::object_kv* p = static_cast<msgpack::object_kv*>(o.zone.allocate_align(sizeof(msgpack::object_kv)*size));
+            msgpack::object_kv* p = static_cast<msgpack::object_kv*>(o.zone.allocate_align(sizeof(msgpack::object_kv)*size, MSGPACK_ZONE_ALIGNOF(msgpack::object_kv)));
             msgpack::object_kv* const pend = p + size;
             o.via.map.ptr  = p;
             o.via.map.size = size;
@@ -155,7 +155,7 @@ struct object_with_zone<std::unordered_multimap<K, V, Hash, Compare, Alloc>> {
             o.via.map.size = 0;
         } else {
             uint32_t size = checked_get_container_size(v.size());
-            msgpack::object_kv* p = static_cast<msgpack::object_kv*>(o.zone.allocate_align(sizeof(msgpack::object_kv)*size));
+            msgpack::object_kv* p = static_cast<msgpack::object_kv*>(o.zone.allocate_align(sizeof(msgpack::object_kv)*size, MSGPACK_ZONE_ALIGNOF(msgpack::object_kv)));
             msgpack::object_kv* const pend = p + size;
             o.via.map.ptr  = p;
             o.via.map.size = size;
diff --git a/include/msgpack/v1/adaptor/cpp11/unordered_set.hpp b/include/msgpack/v1/adaptor/cpp11/unordered_set.hpp
index 3e1da7662..44a3cc3b6 100644
--- a/include/msgpack/v1/adaptor/cpp11/unordered_set.hpp
+++ b/include/msgpack/v1/adaptor/cpp11/unordered_set.hpp
@@ -78,7 +78,7 @@ struct object_with_zone<std::unordered_set<Key, Hash, Compare, Alloc>> {
             o.via.array.size = 0;
         } else {
             uint32_t size = checked_get_container_size(v.size());
-            msgpack::object* p = static_cast<msgpack::object*>(o.zone.allocate_align(sizeof(msgpack::object)*size));
+            msgpack::object* p = static_cast<msgpack::object*>(o.zone.allocate_align(sizeof(msgpack::object)*size, MSGPACK_ZONE_ALIGNOF(msgpack::object)));
             msgpack::object* const pend = p + size;
             o.via.array.ptr = p;
             o.via.array.size = size;
@@ -147,7 +147,7 @@ struct object_with_zone<std::unordered_multiset<Key, Hash, Compare, Alloc>> {
             o.via.array.size = 0;
         } else {
             uint32_t size = checked_get_container_size(v.size());
-            msgpack::object* p = static_cast<msgpack::object*>(o.zone.allocate_align(sizeof(msgpack::object)*size));
+            msgpack::object* p = static_cast<msgpack::object*>(o.zone.allocate_align(sizeof(msgpack::object)*size, MSGPACK_ZONE_ALIGNOF(msgpack::object)));
             msgpack::object* const pend = p + size;
             o.via.array.ptr = p;
             o.via.array.size = size;
diff --git a/include/msgpack/v1/adaptor/deque.hpp b/include/msgpack/v1/adaptor/deque.hpp
index 6d42d6d88..41a0bef69 100644
--- a/include/msgpack/v1/adaptor/deque.hpp
+++ b/include/msgpack/v1/adaptor/deque.hpp
@@ -83,7 +83,7 @@ struct object_with_zone<std::deque<T, Alloc> > {
             o.via.array.size = 0;
         } else {
             uint32_t size = checked_get_container_size(v.size());
-            msgpack::object* p = static_cast<msgpack::object*>(o.zone.allocate_align(sizeof(msgpack::object)*size));
+            msgpack::object* p = static_cast<msgpack::object*>(o.zone.allocate_align(sizeof(msgpack::object)*size, MSGPACK_ZONE_ALIGNOF(msgpack::object)));
             msgpack::object* const pend = p + size;
             o.via.array.ptr = p;
             o.via.array.size = size;
diff --git a/include/msgpack/v1/adaptor/detail/cpp03_define_array.hpp b/include/msgpack/v1/adaptor/detail/cpp03_define_array.hpp
index 66e2aa637..c81582926 100644
--- a/include/msgpack/v1/adaptor/detail/cpp03_define_array.hpp
+++ b/include/msgpack/v1/adaptor/detail/cpp03_define_array.hpp
@@ -75,7 +75,7 @@ struct define_array<A0> {
     void msgpack_object(msgpack::object* o, msgpack::zone& z) const
     {
         o->type = msgpack::type::ARRAY;
-        o->via.array.ptr = static_cast<msgpack::object*>(z.allocate_align(sizeof(msgpack::object)*1));
+        o->via.array.ptr = static_cast<msgpack::object*>(z.allocate_align(sizeof(msgpack::object)*1, MSGPACK_ZONE_ALIGNOF(msgpack::object)));
         o->via.array.size = 1;
         
         o->via.array.ptr[0] = msgpack::object(a0, z);
@@ -118,7 +118,7 @@ struct define_array<A0, A1> {
     void msgpack_object(msgpack::object* o, msgpack::zone& z) const
     {
         o->type = msgpack::type::ARRAY;
-        o->via.array.ptr = static_cast<msgpack::object*>(z.allocate_align(sizeof(msgpack::object)*2));
+        o->via.array.ptr = static_cast<msgpack::object*>(z.allocate_align(sizeof(msgpack::object)*2, MSGPACK_ZONE_ALIGNOF(msgpack::object)));
         o->via.array.size = 2;
         
         o->via.array.ptr[0] = msgpack::object(a0, z);
@@ -167,7 +167,7 @@ struct define_array<A0, A1, A2> {
     void msgpack_object(msgpack::object* o, msgpack::zone& z) const
     {
         o->type = msgpack::type::ARRAY;
-        o->via.array.ptr = static_cast<msgpack::object*>(z.allocate_align(sizeof(msgpack::object)*3));
+        o->via.array.ptr = static_cast<msgpack::object*>(z.allocate_align(sizeof(msgpack::object)*3, MSGPACK_ZONE_ALIGNOF(msgpack::object)));
         o->via.array.size = 3;
         
         o->via.array.ptr[0] = msgpack::object(a0, z);
@@ -222,7 +222,7 @@ struct define_array<A0, A1, A2, A3> {
     void msgpack_object(msgpack::object* o, msgpack::zone& z) const
     {
         o->type = msgpack::type::ARRAY;
-        o->via.array.ptr = static_cast<msgpack::object*>(z.allocate_align(sizeof(msgpack::object)*4));
+        o->via.array.ptr = static_cast<msgpack::object*>(z.allocate_align(sizeof(msgpack::object)*4, MSGPACK_ZONE_ALIGNOF(msgpack::object)));
         o->via.array.size = 4;
         
         o->via.array.ptr[0] = msgpack::object(a0, z);
@@ -283,7 +283,7 @@ struct define_array<A0, A1, A2, A3, A4> {
     void msgpack_object(msgpack::object* o, msgpack::zone& z) const
     {
         o->type = msgpack::type::ARRAY;
-        o->via.array.ptr = static_cast<msgpack::object*>(z.allocate_align(sizeof(msgpack::object)*5));
+        o->via.array.ptr = static_cast<msgpack::object*>(z.allocate_align(sizeof(msgpack::object)*5, MSGPACK_ZONE_ALIGNOF(msgpack::object)));
         o->via.array.size = 5;
         
         o->via.array.ptr[0] = msgpack::object(a0, z);
@@ -350,7 +350,7 @@ struct define_array<A0, A1, A2, A3, A4, A5> {
     void msgpack_object(msgpack::object* o, msgpack::zone& z) const
     {
         o->type = msgpack::type::ARRAY;
-        o->via.array.ptr = static_cast<msgpack::object*>(z.allocate_align(sizeof(msgpack::object)*6));
+        o->via.array.ptr = static_cast<msgpack::object*>(z.allocate_align(sizeof(msgpack::object)*6, MSGPACK_ZONE_ALIGNOF(msgpack::object)));
         o->via.array.size = 6;
         
         o->via.array.ptr[0] = msgpack::object(a0, z);
@@ -423,7 +423,7 @@ struct define_array<A0, A1, A2, A3, A4, A5, A6> {
     void msgpack_object(msgpack::object* o, msgpack::zone& z) const
     {
         o->type = msgpack::type::ARRAY;
-        o->via.array.ptr = static_cast<msgpack::object*>(z.allocate_align(sizeof(msgpack::object)*7));
+        o->via.array.ptr = static_cast<msgpack::object*>(z.allocate_align(sizeof(msgpack::object)*7, MSGPACK_ZONE_ALIGNOF(msgpack::object)));
         o->via.array.size = 7;
         
         o->via.array.ptr[0] = msgpack::object(a0, z);
@@ -502,7 +502,7 @@ struct define_array<A0, A1, A2, A3, A4, A5, A6, A7> {
     void msgpack_object(msgpack::object* o, msgpack::zone& z) const
     {
         o->type = msgpack::type::ARRAY;
-        o->via.array.ptr = static_cast<msgpack::object*>(z.allocate_align(sizeof(msgpack::object)*8));
+        o->via.array.ptr = static_cast<msgpack::object*>(z.allocate_align(sizeof(msgpack::object)*8, MSGPACK_ZONE_ALIGNOF(msgpack::object)));
         o->via.array.size = 8;
         
         o->via.array.ptr[0] = msgpack::object(a0, z);
@@ -587,7 +587,7 @@ struct define_array<A0, A1, A2, A3, A4, A5, A6, A7, A8> {
     void msgpack_object(msgpack::object* o, msgpack::zone& z) const
     {
         o->type = msgpack::type::ARRAY;
-        o->via.array.ptr = static_cast<msgpack::object*>(z.allocate_align(sizeof(msgpack::object)*9));
+        o->via.array.ptr = static_cast<msgpack::object*>(z.allocate_align(sizeof(msgpack::object)*9, MSGPACK_ZONE_ALIGNOF(msgpack::object)));
         o->via.array.size = 9;
         
         o->via.array.ptr[0] = msgpack::object(a0, z);
@@ -678,7 +678,7 @@ struct define_array<A0, A1, A2, A3, A4, A5, A6, A7, A8, A9> {
     void msgpack_object(msgpack::object* o, msgpack::zone& z) const
     {
         o->type = msgpack::type::ARRAY;
-        o->via.array.ptr = static_cast<msgpack::object*>(z.allocate_align(sizeof(msgpack::object)*10));
+        o->via.array.ptr = static_cast<msgpack::object*>(z.allocate_align(sizeof(msgpack::object)*10, MSGPACK_ZONE_ALIGNOF(msgpack::object)));
         o->via.array.size = 10;
         
         o->via.array.ptr[0] = msgpack::object(a0, z);
@@ -775,7 +775,7 @@ struct define_array<A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10> {
     void msgpack_object(msgpack::object* o, msgpack::zone& z) const
     {
         o->type = msgpack::type::ARRAY;
-        o->via.array.ptr = static_cast<msgpack::object*>(z.allocate_align(sizeof(msgpack::object)*11));
+        o->via.array.ptr = static_cast<msgpack::object*>(z.allocate_align(sizeof(msgpack::object)*11, MSGPACK_ZONE_ALIGNOF(msgpack::object)));
         o->via.array.size = 11;
         
         o->via.array.ptr[0] = msgpack::object(a0, z);
@@ -878,7 +878,7 @@ struct define_array<A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11> {
     void msgpack_object(msgpack::object* o, msgpack::zone& z) const
     {
         o->type = msgpack::type::ARRAY;
-        o->via.array.ptr = static_cast<msgpack::object*>(z.allocate_align(sizeof(msgpack::object)*12));
+        o->via.array.ptr = static_cast<msgpack::object*>(z.allocate_align(sizeof(msgpack::object)*12, MSGPACK_ZONE_ALIGNOF(msgpack::object)));
         o->via.array.size = 12;
         
         o->via.array.ptr[0] = msgpack::object(a0, z);
@@ -987,7 +987,7 @@ struct define_array<A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12> {
     void msgpack_object(msgpack::object* o, msgpack::zone& z) const
     {
         o->type = msgpack::type::ARRAY;
-        o->via.array.ptr = static_cast<msgpack::object*>(z.allocate_align(sizeof(msgpack::object)*13));
+        o->via.array.ptr = static_cast<msgpack::object*>(z.allocate_align(sizeof(msgpack::object)*13, MSGPACK_ZONE_ALIGNOF(msgpack::object)));
         o->via.array.size = 13;
         
         o->via.array.ptr[0] = msgpack::object(a0, z);
@@ -1102,7 +1102,7 @@ struct define_array<A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, A13>
     void msgpack_object(msgpack::object* o, msgpack::zone& z) const
     {
         o->type = msgpack::type::ARRAY;
-        o->via.array.ptr = static_cast<msgpack::object*>(z.allocate_align(sizeof(msgpack::object)*14));
+        o->via.array.ptr = static_cast<msgpack::object*>(z.allocate_align(sizeof(msgpack::object)*14, MSGPACK_ZONE_ALIGNOF(msgpack::object)));
         o->via.array.size = 14;
         
         o->via.array.ptr[0] = msgpack::object(a0, z);
@@ -1223,7 +1223,7 @@ struct define_array<A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, A13,
     void msgpack_object(msgpack::object* o, msgpack::zone& z) const
     {
         o->type = msgpack::type::ARRAY;
-        o->via.array.ptr = static_cast<msgpack::object*>(z.allocate_align(sizeof(msgpack::object)*15));
+        o->via.array.ptr = static_cast<msgpack::object*>(z.allocate_align(sizeof(msgpack::object)*15, MSGPACK_ZONE_ALIGNOF(msgpack::object)));
         o->via.array.size = 15;
         
         o->via.array.ptr[0] = msgpack::object(a0, z);
@@ -1350,7 +1350,7 @@ struct define_array<A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, A13,
     void msgpack_object(msgpack::object* o, msgpack::zone& z) const
     {
         o->type = msgpack::type::ARRAY;
-        o->via.array.ptr = static_cast<msgpack::object*>(z.allocate_align(sizeof(msgpack::object)*16));
+        o->via.array.ptr = static_cast<msgpack::object*>(z.allocate_align(sizeof(msgpack::object)*16, MSGPACK_ZONE_ALIGNOF(msgpack::object)));
         o->via.array.size = 16;
         
         o->via.array.ptr[0] = msgpack::object(a0, z);
@@ -1483,7 +1483,7 @@ struct define_array<A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, A13,
     void msgpack_object(msgpack::object* o, msgpack::zone& z) const
     {
         o->type = msgpack::type::ARRAY;
-        o->via.array.ptr = static_cast<msgpack::object*>(z.allocate_align(sizeof(msgpack::object)*17));
+        o->via.array.ptr = static_cast<msgpack::object*>(z.allocate_align(sizeof(msgpack::object)*17, MSGPACK_ZONE_ALIGNOF(msgpack::object)));
         o->via.array.size = 17;
         
         o->via.array.ptr[0] = msgpack::object(a0, z);
@@ -1622,7 +1622,7 @@ struct define_array<A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, A13,
     void msgpack_object(msgpack::object* o, msgpack::zone& z) const
     {
         o->type = msgpack::type::ARRAY;
-        o->via.array.ptr = static_cast<msgpack::object*>(z.allocate_align(sizeof(msgpack::object)*18));
+        o->via.array.ptr = static_cast<msgpack::object*>(z.allocate_align(sizeof(msgpack::object)*18, MSGPACK_ZONE_ALIGNOF(msgpack::object)));
         o->via.array.size = 18;
         
         o->via.array.ptr[0] = msgpack::object(a0, z);
@@ -1767,7 +1767,7 @@ struct define_array<A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, A13,
     void msgpack_object(msgpack::object* o, msgpack::zone& z) const
     {
         o->type = msgpack::type::ARRAY;
-        o->via.array.ptr = static_cast<msgpack::object*>(z.allocate_align(sizeof(msgpack::object)*19));
+        o->via.array.ptr = static_cast<msgpack::object*>(z.allocate_align(sizeof(msgpack::object)*19, MSGPACK_ZONE_ALIGNOF(msgpack::object)));
         o->via.array.size = 19;
         
         o->via.array.ptr[0] = msgpack::object(a0, z);
@@ -1918,7 +1918,7 @@ struct define_array<A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, A13,
     void msgpack_object(msgpack::object* o, msgpack::zone& z) const
     {
         o->type = msgpack::type::ARRAY;
-        o->via.array.ptr = static_cast<msgpack::object*>(z.allocate_align(sizeof(msgpack::object)*20));
+        o->via.array.ptr = static_cast<msgpack::object*>(z.allocate_align(sizeof(msgpack::object)*20, MSGPACK_ZONE_ALIGNOF(msgpack::object)));
         o->via.array.size = 20;
         
         o->via.array.ptr[0] = msgpack::object(a0, z);
@@ -2075,7 +2075,7 @@ struct define_array<A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, A13,
     void msgpack_object(msgpack::object* o, msgpack::zone& z) const
     {
         o->type = msgpack::type::ARRAY;
-        o->via.array.ptr = static_cast<msgpack::object*>(z.allocate_align(sizeof(msgpack::object)*21));
+        o->via.array.ptr = static_cast<msgpack::object*>(z.allocate_align(sizeof(msgpack::object)*21, MSGPACK_ZONE_ALIGNOF(msgpack::object)));
         o->via.array.size = 21;
         
         o->via.array.ptr[0] = msgpack::object(a0, z);
@@ -2238,7 +2238,7 @@ struct define_array<A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, A13,
     void msgpack_object(msgpack::object* o, msgpack::zone& z) const
     {
         o->type = msgpack::type::ARRAY;
-        o->via.array.ptr = static_cast<msgpack::object*>(z.allocate_align(sizeof(msgpack::object)*22));
+        o->via.array.ptr = static_cast<msgpack::object*>(z.allocate_align(sizeof(msgpack::object)*22, MSGPACK_ZONE_ALIGNOF(msgpack::object)));
         o->via.array.size = 22;
         
         o->via.array.ptr[0] = msgpack::object(a0, z);
@@ -2407,7 +2407,7 @@ struct define_array<A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, A13,
     void msgpack_object(msgpack::object* o, msgpack::zone& z) const
     {
         o->type = msgpack::type::ARRAY;
-        o->via.array.ptr = static_cast<msgpack::object*>(z.allocate_align(sizeof(msgpack::object)*23));
+        o->via.array.ptr = static_cast<msgpack::object*>(z.allocate_align(sizeof(msgpack::object)*23, MSGPACK_ZONE_ALIGNOF(msgpack::object)));
         o->via.array.size = 23;
         
         o->via.array.ptr[0] = msgpack::object(a0, z);
@@ -2582,7 +2582,7 @@ struct define_array<A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, A13,
     void msgpack_object(msgpack::object* o, msgpack::zone& z) const
     {
         o->type = msgpack::type::ARRAY;
-        o->via.array.ptr = static_cast<msgpack::object*>(z.allocate_align(sizeof(msgpack::object)*24));
+        o->via.array.ptr = static_cast<msgpack::object*>(z.allocate_align(sizeof(msgpack::object)*24, MSGPACK_ZONE_ALIGNOF(msgpack::object)));
         o->via.array.size = 24;
         
         o->via.array.ptr[0] = msgpack::object(a0, z);
@@ -2763,7 +2763,7 @@ struct define_array<A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, A13,
     void msgpack_object(msgpack::object* o, msgpack::zone& z) const
     {
         o->type = msgpack::type::ARRAY;
-        o->via.array.ptr = static_cast<msgpack::object*>(z.allocate_align(sizeof(msgpack::object)*25));
+        o->via.array.ptr = static_cast<msgpack::object*>(z.allocate_align(sizeof(msgpack::object)*25, MSGPACK_ZONE_ALIGNOF(msgpack::object)));
         o->via.array.size = 25;
         
         o->via.array.ptr[0] = msgpack::object(a0, z);
@@ -2950,7 +2950,7 @@ struct define_array<A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, A13,
     void msgpack_object(msgpack::object* o, msgpack::zone& z) const
     {
         o->type = msgpack::type::ARRAY;
-        o->via.array.ptr = static_cast<msgpack::object*>(z.allocate_align(sizeof(msgpack::object)*26));
+        o->via.array.ptr = static_cast<msgpack::object*>(z.allocate_align(sizeof(msgpack::object)*26, MSGPACK_ZONE_ALIGNOF(msgpack::object)));
         o->via.array.size = 26;
         
         o->via.array.ptr[0] = msgpack::object(a0, z);
@@ -3143,7 +3143,7 @@ struct define_array<A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, A13,
     void msgpack_object(msgpack::object* o, msgpack::zone& z) const
     {
         o->type = msgpack::type::ARRAY;
-        o->via.array.ptr = static_cast<msgpack::object*>(z.allocate_align(sizeof(msgpack::object)*27));
+        o->via.array.ptr = static_cast<msgpack::object*>(z.allocate_align(sizeof(msgpack::object)*27, MSGPACK_ZONE_ALIGNOF(msgpack::object)));
         o->via.array.size = 27;
         
         o->via.array.ptr[0] = msgpack::object(a0, z);
@@ -3342,7 +3342,7 @@ struct define_array<A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, A13,
     void msgpack_object(msgpack::object* o, msgpack::zone& z) const
     {
         o->type = msgpack::type::ARRAY;
-        o->via.array.ptr = static_cast<msgpack::object*>(z.allocate_align(sizeof(msgpack::object)*28));
+        o->via.array.ptr = static_cast<msgpack::object*>(z.allocate_align(sizeof(msgpack::object)*28, MSGPACK_ZONE_ALIGNOF(msgpack::object)));
         o->via.array.size = 28;
         
         o->via.array.ptr[0] = msgpack::object(a0, z);
@@ -3547,7 +3547,7 @@ struct define_array<A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, A13,
     void msgpack_object(msgpack::object* o, msgpack::zone& z) const
     {
         o->type = msgpack::type::ARRAY;
-        o->via.array.ptr = static_cast<msgpack::object*>(z.allocate_align(sizeof(msgpack::object)*29));
+        o->via.array.ptr = static_cast<msgpack::object*>(z.allocate_align(sizeof(msgpack::object)*29, MSGPACK_ZONE_ALIGNOF(msgpack::object)));
         o->via.array.size = 29;
         
         o->via.array.ptr[0] = msgpack::object(a0, z);
@@ -3758,7 +3758,7 @@ struct define_array<A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, A13,
     void msgpack_object(msgpack::object* o, msgpack::zone& z) const
     {
         o->type = msgpack::type::ARRAY;
-        o->via.array.ptr = static_cast<msgpack::object*>(z.allocate_align(sizeof(msgpack::object)*30));
+        o->via.array.ptr = static_cast<msgpack::object*>(z.allocate_align(sizeof(msgpack::object)*30, MSGPACK_ZONE_ALIGNOF(msgpack::object)));
         o->via.array.size = 30;
         
         o->via.array.ptr[0] = msgpack::object(a0, z);
@@ -3975,7 +3975,7 @@ struct define_array<A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, A13,
     void msgpack_object(msgpack::object* o, msgpack::zone& z) const
     {
         o->type = msgpack::type::ARRAY;
-        o->via.array.ptr = static_cast<msgpack::object*>(z.allocate_align(sizeof(msgpack::object)*31));
+        o->via.array.ptr = static_cast<msgpack::object*>(z.allocate_align(sizeof(msgpack::object)*31, MSGPACK_ZONE_ALIGNOF(msgpack::object)));
         o->via.array.size = 31;
         
         o->via.array.ptr[0] = msgpack::object(a0, z);
@@ -4198,7 +4198,7 @@ struct define_array<A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, A13,
     void msgpack_object(msgpack::object* o, msgpack::zone& z) const
     {
         o->type = msgpack::type::ARRAY;
-        o->via.array.ptr = static_cast<msgpack::object*>(z.allocate_align(sizeof(msgpack::object)*32));
+        o->via.array.ptr = static_cast<msgpack::object*>(z.allocate_align(sizeof(msgpack::object)*32, MSGPACK_ZONE_ALIGNOF(msgpack::object)));
         o->via.array.size = 32;
         
         o->via.array.ptr[0] = msgpack::object(a0, z);
diff --git a/include/msgpack/v1/adaptor/detail/cpp03_define_map.hpp b/include/msgpack/v1/adaptor/detail/cpp03_define_map.hpp
index 9e0acddd5..69f347e07 100644
--- a/include/msgpack/v1/adaptor/detail/cpp03_define_map.hpp
+++ b/include/msgpack/v1/adaptor/detail/cpp03_define_map.hpp
@@ -83,7 +83,7 @@ struct define_map<A0, A1> {
     void msgpack_object(msgpack::object* o, msgpack::zone& z) const
     {
         o->type = msgpack::type::MAP;
-        o->via.map.ptr = static_cast<msgpack::object_kv*>(z.allocate_align(sizeof(msgpack::object_kv)*1));
+        o->via.map.ptr = static_cast<msgpack::object_kv*>(z.allocate_align(sizeof(msgpack::object_kv)*1, MSGPACK_ZONE_ALIGNOF(msgpack::object_kv)));
         o->via.map.size = 1;
         
         o->via.map.ptr[0].key = msgpack::object(a0, z);
@@ -142,7 +142,7 @@ struct define_map<A0, A1, A2, A3> {
     void msgpack_object(msgpack::object* o, msgpack::zone& z) const
     {
         o->type = msgpack::type::MAP;
-        o->via.map.ptr = static_cast<msgpack::object_kv*>(z.allocate_align(sizeof(msgpack::object_kv)*2));
+        o->via.map.ptr = static_cast<msgpack::object_kv*>(z.allocate_align(sizeof(msgpack::object_kv)*2, MSGPACK_ZONE_ALIGNOF(msgpack::object_kv)));
         o->via.map.size = 2;
         
         o->via.map.ptr[0].key = msgpack::object(a0, z);
@@ -215,7 +215,7 @@ struct define_map<A0, A1, A2, A3, A4, A5> {
     void msgpack_object(msgpack::object* o, msgpack::zone& z) const
     {
         o->type = msgpack::type::MAP;
-        o->via.map.ptr = static_cast<msgpack::object_kv*>(z.allocate_align(sizeof(msgpack::object_kv)*3));
+        o->via.map.ptr = static_cast<msgpack::object_kv*>(z.allocate_align(sizeof(msgpack::object_kv)*3, MSGPACK_ZONE_ALIGNOF(msgpack::object_kv)));
         o->via.map.size = 3;
         
         o->via.map.ptr[0].key = msgpack::object(a0, z);
@@ -302,7 +302,7 @@ struct define_map<A0, A1, A2, A3, A4, A5, A6, A7> {
     void msgpack_object(msgpack::object* o, msgpack::zone& z) const
     {
         o->type = msgpack::type::MAP;
-        o->via.map.ptr = static_cast<msgpack::object_kv*>(z.allocate_align(sizeof(msgpack::object_kv)*4));
+        o->via.map.ptr = static_cast<msgpack::object_kv*>(z.allocate_align(sizeof(msgpack::object_kv)*4, MSGPACK_ZONE_ALIGNOF(msgpack::object_kv)));
         o->via.map.size = 4;
         
         o->via.map.ptr[0].key = msgpack::object(a0, z);
@@ -403,7 +403,7 @@ struct define_map<A0, A1, A2, A3, A4, A5, A6, A7, A8, A9> {
     void msgpack_object(msgpack::object* o, msgpack::zone& z) const
     {
         o->type = msgpack::type::MAP;
-        o->via.map.ptr = static_cast<msgpack::object_kv*>(z.allocate_align(sizeof(msgpack::object_kv)*5));
+        o->via.map.ptr = static_cast<msgpack::object_kv*>(z.allocate_align(sizeof(msgpack::object_kv)*5, MSGPACK_ZONE_ALIGNOF(msgpack::object_kv)));
         o->via.map.size = 5;
         
         o->via.map.ptr[0].key = msgpack::object(a0, z);
@@ -518,7 +518,7 @@ struct define_map<A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11> {
     void msgpack_object(msgpack::object* o, msgpack::zone& z) const
     {
         o->type = msgpack::type::MAP;
-        o->via.map.ptr = static_cast<msgpack::object_kv*>(z.allocate_align(sizeof(msgpack::object_kv)*6));
+        o->via.map.ptr = static_cast<msgpack::object_kv*>(z.allocate_align(sizeof(msgpack::object_kv)*6, MSGPACK_ZONE_ALIGNOF(msgpack::object_kv)));
         o->via.map.size = 6;
         
         o->via.map.ptr[0].key = msgpack::object(a0, z);
@@ -647,7 +647,7 @@ struct define_map<A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, A13> {
     void msgpack_object(msgpack::object* o, msgpack::zone& z) const
     {
         o->type = msgpack::type::MAP;
-        o->via.map.ptr = static_cast<msgpack::object_kv*>(z.allocate_align(sizeof(msgpack::object_kv)*7));
+        o->via.map.ptr = static_cast<msgpack::object_kv*>(z.allocate_align(sizeof(msgpack::object_kv)*7, MSGPACK_ZONE_ALIGNOF(msgpack::object_kv)));
         o->via.map.size = 7;
         
         o->via.map.ptr[0].key = msgpack::object(a0, z);
@@ -790,7 +790,7 @@ struct define_map<A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, A13, A1
     void msgpack_object(msgpack::object* o, msgpack::zone& z) const
     {
         o->type = msgpack::type::MAP;
-        o->via.map.ptr = static_cast<msgpack::object_kv*>(z.allocate_align(sizeof(msgpack::object_kv)*8));
+        o->via.map.ptr = static_cast<msgpack::object_kv*>(z.allocate_align(sizeof(msgpack::object_kv)*8, MSGPACK_ZONE_ALIGNOF(msgpack::object_kv)));
         o->via.map.size = 8;
         
         o->via.map.ptr[0].key = msgpack::object(a0, z);
@@ -947,7 +947,7 @@ struct define_map<A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, A13, A1
     void msgpack_object(msgpack::object* o, msgpack::zone& z) const
     {
         o->type = msgpack::type::MAP;
-        o->via.map.ptr = static_cast<msgpack::object_kv*>(z.allocate_align(sizeof(msgpack::object_kv)*9));
+        o->via.map.ptr = static_cast<msgpack::object_kv*>(z.allocate_align(sizeof(msgpack::object_kv)*9, MSGPACK_ZONE_ALIGNOF(msgpack::object_kv)));
         o->via.map.size = 9;
         
         o->via.map.ptr[0].key = msgpack::object(a0, z);
@@ -1118,7 +1118,7 @@ struct define_map<A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, A13, A1
     void msgpack_object(msgpack::object* o, msgpack::zone& z) const
     {
         o->type = msgpack::type::MAP;
-        o->via.map.ptr = static_cast<msgpack::object_kv*>(z.allocate_align(sizeof(msgpack::object_kv)*10));
+        o->via.map.ptr = static_cast<msgpack::object_kv*>(z.allocate_align(sizeof(msgpack::object_kv)*10, MSGPACK_ZONE_ALIGNOF(msgpack::object_kv)));
         o->via.map.size = 10;
         
         o->via.map.ptr[0].key = msgpack::object(a0, z);
@@ -1303,7 +1303,7 @@ struct define_map<A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, A13, A1
     void msgpack_object(msgpack::object* o, msgpack::zone& z) const
     {
         o->type = msgpack::type::MAP;
-        o->via.map.ptr = static_cast<msgpack::object_kv*>(z.allocate_align(sizeof(msgpack::object_kv)*11));
+        o->via.map.ptr = static_cast<msgpack::object_kv*>(z.allocate_align(sizeof(msgpack::object_kv)*11, MSGPACK_ZONE_ALIGNOF(msgpack::object_kv)));
         o->via.map.size = 11;
         
         o->via.map.ptr[0].key = msgpack::object(a0, z);
@@ -1502,7 +1502,7 @@ struct define_map<A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, A13, A1
     void msgpack_object(msgpack::object* o, msgpack::zone& z) const
     {
         o->type = msgpack::type::MAP;
-        o->via.map.ptr = static_cast<msgpack::object_kv*>(z.allocate_align(sizeof(msgpack::object_kv)*12));
+        o->via.map.ptr = static_cast<msgpack::object_kv*>(z.allocate_align(sizeof(msgpack::object_kv)*12, MSGPACK_ZONE_ALIGNOF(msgpack::object_kv)));
         o->via.map.size = 12;
         
         o->via.map.ptr[0].key = msgpack::object(a0, z);
@@ -1715,7 +1715,7 @@ struct define_map<A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, A13, A1
     void msgpack_object(msgpack::object* o, msgpack::zone& z) const
     {
         o->type = msgpack::type::MAP;
-        o->via.map.ptr = static_cast<msgpack::object_kv*>(z.allocate_align(sizeof(msgpack::object_kv)*13));
+        o->via.map.ptr = static_cast<msgpack::object_kv*>(z.allocate_align(sizeof(msgpack::object_kv)*13, MSGPACK_ZONE_ALIGNOF(msgpack::object_kv)));
         o->via.map.size = 13;
         
         o->via.map.ptr[0].key = msgpack::object(a0, z);
@@ -1942,7 +1942,7 @@ struct define_map<A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, A13, A1
     void msgpack_object(msgpack::object* o, msgpack::zone& z) const
     {
         o->type = msgpack::type::MAP;
-        o->via.map.ptr = static_cast<msgpack::object_kv*>(z.allocate_align(sizeof(msgpack::object_kv)*14));
+        o->via.map.ptr = static_cast<msgpack::object_kv*>(z.allocate_align(sizeof(msgpack::object_kv)*14, MSGPACK_ZONE_ALIGNOF(msgpack::object_kv)));
         o->via.map.size = 14;
         
         o->via.map.ptr[0].key = msgpack::object(a0, z);
@@ -2183,7 +2183,7 @@ struct define_map<A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, A13, A1
     void msgpack_object(msgpack::object* o, msgpack::zone& z) const
     {
         o->type = msgpack::type::MAP;
-        o->via.map.ptr = static_cast<msgpack::object_kv*>(z.allocate_align(sizeof(msgpack::object_kv)*15));
+        o->via.map.ptr = static_cast<msgpack::object_kv*>(z.allocate_align(sizeof(msgpack::object_kv)*15, MSGPACK_ZONE_ALIGNOF(msgpack::object_kv)));
         o->via.map.size = 15;
         
         o->via.map.ptr[0].key = msgpack::object(a0, z);
@@ -2438,7 +2438,7 @@ struct define_map<A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, A13, A1
     void msgpack_object(msgpack::object* o, msgpack::zone& z) const
     {
         o->type = msgpack::type::MAP;
-        o->via.map.ptr = static_cast<msgpack::object_kv*>(z.allocate_align(sizeof(msgpack::object_kv)*16));
+        o->via.map.ptr = static_cast<msgpack::object_kv*>(z.allocate_align(sizeof(msgpack::object_kv)*16, MSGPACK_ZONE_ALIGNOF(msgpack::object_kv)));
         o->via.map.size = 16;
         
         o->via.map.ptr[0].key = msgpack::object(a0, z);
diff --git a/include/msgpack/v1/adaptor/detail/cpp03_msgpack_tuple.hpp b/include/msgpack/v1/adaptor/detail/cpp03_msgpack_tuple.hpp
index f10a2d77c..88a0b3b55 100644
--- a/include/msgpack/v1/adaptor/detail/cpp03_msgpack_tuple.hpp
+++ b/include/msgpack/v1/adaptor/detail/cpp03_msgpack_tuple.hpp
@@ -13506,7 +13506,7 @@ struct object_with_zone<type::tuple<A0> > {
         msgpack::object::with_zone& o,
         const type::tuple<A0>& v) const {
         o.type = msgpack::type::ARRAY;
-        o.via.array.ptr = static_cast<msgpack::object*>(o.zone.allocate_align(sizeof(msgpack::object)*1));
+        o.via.array.ptr = static_cast<msgpack::object*>(o.zone.allocate_align(sizeof(msgpack::object)*1, MSGPACK_ZONE_ALIGNOF(msgpack::object)));
         o.via.array.size = 1;
         
         o.via.array.ptr[0] = msgpack::object(v.template get<0>(), o.zone);
@@ -13519,7 +13519,7 @@ struct object_with_zone<type::tuple<A0, A1> > {
         msgpack::object::with_zone& o,
         const type::tuple<A0, A1>& v) const {
         o.type = msgpack::type::ARRAY;
-        o.via.array.ptr = static_cast<msgpack::object*>(o.zone.allocate_align(sizeof(msgpack::object)*2));
+        o.via.array.ptr = static_cast<msgpack::object*>(o.zone.allocate_align(sizeof(msgpack::object)*2, MSGPACK_ZONE_ALIGNOF(msgpack::object)));
         o.via.array.size = 2;
         
         o.via.array.ptr[0] = msgpack::object(v.template get<0>(), o.zone);
@@ -13533,7 +13533,7 @@ struct object_with_zone<type::tuple<A0, A1, A2> > {
         msgpack::object::with_zone& o,
         const type::tuple<A0, A1, A2>& v) const {
         o.type = msgpack::type::ARRAY;
-        o.via.array.ptr = static_cast<msgpack::object*>(o.zone.allocate_align(sizeof(msgpack::object)*3));
+        o.via.array.ptr = static_cast<msgpack::object*>(o.zone.allocate_align(sizeof(msgpack::object)*3, MSGPACK_ZONE_ALIGNOF(msgpack::object)));
         o.via.array.size = 3;
         
         o.via.array.ptr[0] = msgpack::object(v.template get<0>(), o.zone);
@@ -13548,7 +13548,7 @@ struct object_with_zone<type::tuple<A0, A1, A2, A3> > {
         msgpack::object::with_zone& o,
         const type::tuple<A0, A1, A2, A3>& v) const {
         o.type = msgpack::type::ARRAY;
-        o.via.array.ptr = static_cast<msgpack::object*>(o.zone.allocate_align(sizeof(msgpack::object)*4));
+        o.via.array.ptr = static_cast<msgpack::object*>(o.zone.allocate_align(sizeof(msgpack::object)*4, MSGPACK_ZONE_ALIGNOF(msgpack::object)));
         o.via.array.size = 4;
         
         o.via.array.ptr[0] = msgpack::object(v.template get<0>(), o.zone);
@@ -13564,7 +13564,7 @@ struct object_with_zone<type::tuple<A0, A1, A2, A3, A4> > {
         msgpack::object::with_zone& o,
         const type::tuple<A0, A1, A2, A3, A4>& v) const {
         o.type = msgpack::type::ARRAY;
-        o.via.array.ptr = static_cast<msgpack::object*>(o.zone.allocate_align(sizeof(msgpack::object)*5));
+        o.via.array.ptr = static_cast<msgpack::object*>(o.zone.allocate_align(sizeof(msgpack::object)*5, MSGPACK_ZONE_ALIGNOF(msgpack::object)));
         o.via.array.size = 5;
         
         o.via.array.ptr[0] = msgpack::object(v.template get<0>(), o.zone);
@@ -13581,7 +13581,7 @@ struct object_with_zone<type::tuple<A0, A1, A2, A3, A4, A5> > {
         msgpack::object::with_zone& o,
         const type::tuple<A0, A1, A2, A3, A4, A5>& v) const {
         o.type = msgpack::type::ARRAY;
-        o.via.array.ptr = static_cast<msgpack::object*>(o.zone.allocate_align(sizeof(msgpack::object)*6));
+        o.via.array.ptr = static_cast<msgpack::object*>(o.zone.allocate_align(sizeof(msgpack::object)*6, MSGPACK_ZONE_ALIGNOF(msgpack::object)));
         o.via.array.size = 6;
         
         o.via.array.ptr[0] = msgpack::object(v.template get<0>(), o.zone);
@@ -13599,7 +13599,7 @@ struct object_with_zone<type::tuple<A0, A1, A2, A3, A4, A5, A6> > {
         msgpack::object::with_zone& o,
         const type::tuple<A0, A1, A2, A3, A4, A5, A6>& v) const {
         o.type = msgpack::type::ARRAY;
-        o.via.array.ptr = static_cast<msgpack::object*>(o.zone.allocate_align(sizeof(msgpack::object)*7));
+        o.via.array.ptr = static_cast<msgpack::object*>(o.zone.allocate_align(sizeof(msgpack::object)*7, MSGPACK_ZONE_ALIGNOF(msgpack::object)));
         o.via.array.size = 7;
         
         o.via.array.ptr[0] = msgpack::object(v.template get<0>(), o.zone);
@@ -13618,7 +13618,7 @@ struct object_with_zone<type::tuple<A0, A1, A2, A3, A4, A5, A6, A7> > {
         msgpack::object::with_zone& o,
         const type::tuple<A0, A1, A2, A3, A4, A5, A6, A7>& v) const {
         o.type = msgpack::type::ARRAY;
-        o.via.array.ptr = static_cast<msgpack::object*>(o.zone.allocate_align(sizeof(msgpack::object)*8));
+        o.via.array.ptr = static_cast<msgpack::object*>(o.zone.allocate_align(sizeof(msgpack::object)*8, MSGPACK_ZONE_ALIGNOF(msgpack::object)));
         o.via.array.size = 8;
         
         o.via.array.ptr[0] = msgpack::object(v.template get<0>(), o.zone);
@@ -13638,7 +13638,7 @@ struct object_with_zone<type::tuple<A0, A1, A2, A3, A4, A5, A6, A7, A8> > {
         msgpack::object::with_zone& o,
         const type::tuple<A0, A1, A2, A3, A4, A5, A6, A7, A8>& v) const {
         o.type = msgpack::type::ARRAY;
-        o.via.array.ptr = static_cast<msgpack::object*>(o.zone.allocate_align(sizeof(msgpack::object)*9));
+        o.via.array.ptr = static_cast<msgpack::object*>(o.zone.allocate_align(sizeof(msgpack::object)*9, MSGPACK_ZONE_ALIGNOF(msgpack::object)));
         o.via.array.size = 9;
         
         o.via.array.ptr[0] = msgpack::object(v.template get<0>(), o.zone);
@@ -13659,7 +13659,7 @@ struct object_with_zone<type::tuple<A0, A1, A2, A3, A4, A5, A6, A7, A8, A9> > {
         msgpack::object::with_zone& o,
         const type::tuple<A0, A1, A2, A3, A4, A5, A6, A7, A8, A9>& v) const {
         o.type = msgpack::type::ARRAY;
-        o.via.array.ptr = static_cast<msgpack::object*>(o.zone.allocate_align(sizeof(msgpack::object)*10));
+        o.via.array.ptr = static_cast<msgpack::object*>(o.zone.allocate_align(sizeof(msgpack::object)*10, MSGPACK_ZONE_ALIGNOF(msgpack::object)));
         o.via.array.size = 10;
         
         o.via.array.ptr[0] = msgpack::object(v.template get<0>(), o.zone);
@@ -13681,7 +13681,7 @@ struct object_with_zone<type::tuple<A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10>
         msgpack::object::with_zone& o,
         const type::tuple<A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10>& v) const {
         o.type = msgpack::type::ARRAY;
-        o.via.array.ptr = static_cast<msgpack::object*>(o.zone.allocate_align(sizeof(msgpack::object)*11));
+        o.via.array.ptr = static_cast<msgpack::object*>(o.zone.allocate_align(sizeof(msgpack::object)*11, MSGPACK_ZONE_ALIGNOF(msgpack::object)));
         o.via.array.size = 11;
         
         o.via.array.ptr[0] = msgpack::object(v.template get<0>(), o.zone);
@@ -13704,7 +13704,7 @@ struct object_with_zone<type::tuple<A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10,
         msgpack::object::with_zone& o,
         const type::tuple<A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11>& v) const {
         o.type = msgpack::type::ARRAY;
-        o.via.array.ptr = static_cast<msgpack::object*>(o.zone.allocate_align(sizeof(msgpack::object)*12));
+        o.via.array.ptr = static_cast<msgpack::object*>(o.zone.allocate_align(sizeof(msgpack::object)*12, MSGPACK_ZONE_ALIGNOF(msgpack::object)));
         o.via.array.size = 12;
         
         o.via.array.ptr[0] = msgpack::object(v.template get<0>(), o.zone);
@@ -13728,7 +13728,7 @@ struct object_with_zone<type::tuple<A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10,
         msgpack::object::with_zone& o,
         const type::tuple<A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12>& v) const {
         o.type = msgpack::type::ARRAY;
-        o.via.array.ptr = static_cast<msgpack::object*>(o.zone.allocate_align(sizeof(msgpack::object)*13));
+        o.via.array.ptr = static_cast<msgpack::object*>(o.zone.allocate_align(sizeof(msgpack::object)*13, MSGPACK_ZONE_ALIGNOF(msgpack::object)));
         o.via.array.size = 13;
         
         o.via.array.ptr[0] = msgpack::object(v.template get<0>(), o.zone);
@@ -13753,7 +13753,7 @@ struct object_with_zone<type::tuple<A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10,
         msgpack::object::with_zone& o,
         const type::tuple<A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, A13>& v) const {
         o.type = msgpack::type::ARRAY;
-        o.via.array.ptr = static_cast<msgpack::object*>(o.zone.allocate_align(sizeof(msgpack::object)*14));
+        o.via.array.ptr = static_cast<msgpack::object*>(o.zone.allocate_align(sizeof(msgpack::object)*14, MSGPACK_ZONE_ALIGNOF(msgpack::object)));
         o.via.array.size = 14;
         
         o.via.array.ptr[0] = msgpack::object(v.template get<0>(), o.zone);
@@ -13779,7 +13779,7 @@ struct object_with_zone<type::tuple<A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10,
         msgpack::object::with_zone& o,
         const type::tuple<A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, A13, A14>& v) const {
         o.type = msgpack::type::ARRAY;
-        o.via.array.ptr = static_cast<msgpack::object*>(o.zone.allocate_align(sizeof(msgpack::object)*15));
+        o.via.array.ptr = static_cast<msgpack::object*>(o.zone.allocate_align(sizeof(msgpack::object)*15, MSGPACK_ZONE_ALIGNOF(msgpack::object)));
         o.via.array.size = 15;
         
         o.via.array.ptr[0] = msgpack::object(v.template get<0>(), o.zone);
@@ -13806,7 +13806,7 @@ struct object_with_zone<type::tuple<A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10,
         msgpack::object::with_zone& o,
         const type::tuple<A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, A13, A14, A15>& v) const {
         o.type = msgpack::type::ARRAY;
-        o.via.array.ptr = static_cast<msgpack::object*>(o.zone.allocate_align(sizeof(msgpack::object)*16));
+        o.via.array.ptr = static_cast<msgpack::object*>(o.zone.allocate_align(sizeof(msgpack::object)*16, MSGPACK_ZONE_ALIGNOF(msgpack::object)));
         o.via.array.size = 16;
         
         o.via.array.ptr[0] = msgpack::object(v.template get<0>(), o.zone);
@@ -13834,7 +13834,7 @@ struct object_with_zone<type::tuple<A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10,
         msgpack::object::with_zone& o,
         const type::tuple<A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, A13, A14, A15, A16>& v) const {
         o.type = msgpack::type::ARRAY;
-        o.via.array.ptr = static_cast<msgpack::object*>(o.zone.allocate_align(sizeof(msgpack::object)*17));
+        o.via.array.ptr = static_cast<msgpack::object*>(o.zone.allocate_align(sizeof(msgpack::object)*17, MSGPACK_ZONE_ALIGNOF(msgpack::object)));
         o.via.array.size = 17;
         
         o.via.array.ptr[0] = msgpack::object(v.template get<0>(), o.zone);
@@ -13863,7 +13863,7 @@ struct object_with_zone<type::tuple<A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10,
         msgpack::object::with_zone& o,
         const type::tuple<A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, A13, A14, A15, A16, A17>& v) const {
         o.type = msgpack::type::ARRAY;
-        o.via.array.ptr = static_cast<msgpack::object*>(o.zone.allocate_align(sizeof(msgpack::object)*18));
+        o.via.array.ptr = static_cast<msgpack::object*>(o.zone.allocate_align(sizeof(msgpack::object)*18, MSGPACK_ZONE_ALIGNOF(msgpack::object)));
         o.via.array.size = 18;
         
         o.via.array.ptr[0] = msgpack::object(v.template get<0>(), o.zone);
@@ -13893,7 +13893,7 @@ struct object_with_zone<type::tuple<A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10,
         msgpack::object::with_zone& o,
         const type::tuple<A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, A13, A14, A15, A16, A17, A18>& v) const {
         o.type = msgpack::type::ARRAY;
-        o.via.array.ptr = static_cast<msgpack::object*>(o.zone.allocate_align(sizeof(msgpack::object)*19));
+        o.via.array.ptr = static_cast<msgpack::object*>(o.zone.allocate_align(sizeof(msgpack::object)*19, MSGPACK_ZONE_ALIGNOF(msgpack::object)));
         o.via.array.size = 19;
         
         o.via.array.ptr[0] = msgpack::object(v.template get<0>(), o.zone);
@@ -13924,7 +13924,7 @@ struct object_with_zone<type::tuple<A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10,
         msgpack::object::with_zone& o,
         const type::tuple<A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, A13, A14, A15, A16, A17, A18, A19>& v) const {
         o.type = msgpack::type::ARRAY;
-        o.via.array.ptr = static_cast<msgpack::object*>(o.zone.allocate_align(sizeof(msgpack::object)*20));
+        o.via.array.ptr = static_cast<msgpack::object*>(o.zone.allocate_align(sizeof(msgpack::object)*20, MSGPACK_ZONE_ALIGNOF(msgpack::object)));
         o.via.array.size = 20;
         
         o.via.array.ptr[0] = msgpack::object(v.template get<0>(), o.zone);
@@ -13956,7 +13956,7 @@ struct object_with_zone<type::tuple<A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10,
         msgpack::object::with_zone& o,
         const type::tuple<A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, A13, A14, A15, A16, A17, A18, A19, A20>& v) const {
         o.type = msgpack::type::ARRAY;
-        o.via.array.ptr = static_cast<msgpack::object*>(o.zone.allocate_align(sizeof(msgpack::object)*21));
+        o.via.array.ptr = static_cast<msgpack::object*>(o.zone.allocate_align(sizeof(msgpack::object)*21, MSGPACK_ZONE_ALIGNOF(msgpack::object)));
         o.via.array.size = 21;
         
         o.via.array.ptr[0] = msgpack::object(v.template get<0>(), o.zone);
@@ -13989,7 +13989,7 @@ struct object_with_zone<type::tuple<A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10,
         msgpack::object::with_zone& o,
         const type::tuple<A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, A13, A14, A15, A16, A17, A18, A19, A20, A21>& v) const {
         o.type = msgpack::type::ARRAY;
-        o.via.array.ptr = static_cast<msgpack::object*>(o.zone.allocate_align(sizeof(msgpack::object)*22));
+        o.via.array.ptr = static_cast<msgpack::object*>(o.zone.allocate_align(sizeof(msgpack::object)*22, MSGPACK_ZONE_ALIGNOF(msgpack::object)));
         o.via.array.size = 22;
         
         o.via.array.ptr[0] = msgpack::object(v.template get<0>(), o.zone);
@@ -14023,7 +14023,7 @@ struct object_with_zone<type::tuple<A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10,
         msgpack::object::with_zone& o,
         const type::tuple<A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, A13, A14, A15, A16, A17, A18, A19, A20, A21, A22>& v) const {
         o.type = msgpack::type::ARRAY;
-        o.via.array.ptr = static_cast<msgpack::object*>(o.zone.allocate_align(sizeof(msgpack::object)*23));
+        o.via.array.ptr = static_cast<msgpack::object*>(o.zone.allocate_align(sizeof(msgpack::object)*23, MSGPACK_ZONE_ALIGNOF(msgpack::object)));
         o.via.array.size = 23;
         
         o.via.array.ptr[0] = msgpack::object(v.template get<0>(), o.zone);
@@ -14058,7 +14058,7 @@ struct object_with_zone<type::tuple<A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10,
         msgpack::object::with_zone& o,
         const type::tuple<A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, A13, A14, A15, A16, A17, A18, A19, A20, A21, A22, A23>& v) const {
         o.type = msgpack::type::ARRAY;
-        o.via.array.ptr = static_cast<msgpack::object*>(o.zone.allocate_align(sizeof(msgpack::object)*24));
+        o.via.array.ptr = static_cast<msgpack::object*>(o.zone.allocate_align(sizeof(msgpack::object)*24, MSGPACK_ZONE_ALIGNOF(msgpack::object)));
         o.via.array.size = 24;
         
         o.via.array.ptr[0] = msgpack::object(v.template get<0>(), o.zone);
@@ -14094,7 +14094,7 @@ struct object_with_zone<type::tuple<A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10,
         msgpack::object::with_zone& o,
         const type::tuple<A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, A13, A14, A15, A16, A17, A18, A19, A20, A21, A22, A23, A24>& v) const {
         o.type = msgpack::type::ARRAY;
-        o.via.array.ptr = static_cast<msgpack::object*>(o.zone.allocate_align(sizeof(msgpack::object)*25));
+        o.via.array.ptr = static_cast<msgpack::object*>(o.zone.allocate_align(sizeof(msgpack::object)*25, MSGPACK_ZONE_ALIGNOF(msgpack::object)));
         o.via.array.size = 25;
         
         o.via.array.ptr[0] = msgpack::object(v.template get<0>(), o.zone);
@@ -14131,7 +14131,7 @@ struct object_with_zone<type::tuple<A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10,
         msgpack::object::with_zone& o,
         const type::tuple<A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, A13, A14, A15, A16, A17, A18, A19, A20, A21, A22, A23, A24, A25>& v) const {
         o.type = msgpack::type::ARRAY;
-        o.via.array.ptr = static_cast<msgpack::object*>(o.zone.allocate_align(sizeof(msgpack::object)*26));
+        o.via.array.ptr = static_cast<msgpack::object*>(o.zone.allocate_align(sizeof(msgpack::object)*26, MSGPACK_ZONE_ALIGNOF(msgpack::object)));
         o.via.array.size = 26;
         
         o.via.array.ptr[0] = msgpack::object(v.template get<0>(), o.zone);
@@ -14169,7 +14169,7 @@ struct object_with_zone<type::tuple<A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10,
         msgpack::object::with_zone& o,
         const type::tuple<A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, A13, A14, A15, A16, A17, A18, A19, A20, A21, A22, A23, A24, A25, A26>& v) const {
         o.type = msgpack::type::ARRAY;
-        o.via.array.ptr = static_cast<msgpack::object*>(o.zone.allocate_align(sizeof(msgpack::object)*27));
+        o.via.array.ptr = static_cast<msgpack::object*>(o.zone.allocate_align(sizeof(msgpack::object)*27, MSGPACK_ZONE_ALIGNOF(msgpack::object)));
         o.via.array.size = 27;
         
         o.via.array.ptr[0] = msgpack::object(v.template get<0>(), o.zone);
@@ -14208,7 +14208,7 @@ struct object_with_zone<type::tuple<A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10,
         msgpack::object::with_zone& o,
         const type::tuple<A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, A13, A14, A15, A16, A17, A18, A19, A20, A21, A22, A23, A24, A25, A26, A27>& v) const {
         o.type = msgpack::type::ARRAY;
-        o.via.array.ptr = static_cast<msgpack::object*>(o.zone.allocate_align(sizeof(msgpack::object)*28));
+        o.via.array.ptr = static_cast<msgpack::object*>(o.zone.allocate_align(sizeof(msgpack::object)*28, MSGPACK_ZONE_ALIGNOF(msgpack::object)));
         o.via.array.size = 28;
         
         o.via.array.ptr[0] = msgpack::object(v.template get<0>(), o.zone);
@@ -14248,7 +14248,7 @@ struct object_with_zone<type::tuple<A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10,
         msgpack::object::with_zone& o,
         const type::tuple<A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, A13, A14, A15, A16, A17, A18, A19, A20, A21, A22, A23, A24, A25, A26, A27, A28>& v) const {
         o.type = msgpack::type::ARRAY;
-        o.via.array.ptr = static_cast<msgpack::object*>(o.zone.allocate_align(sizeof(msgpack::object)*29));
+        o.via.array.ptr = static_cast<msgpack::object*>(o.zone.allocate_align(sizeof(msgpack::object)*29, MSGPACK_ZONE_ALIGNOF(msgpack::object)));
         o.via.array.size = 29;
         
         o.via.array.ptr[0] = msgpack::object(v.template get<0>(), o.zone);
@@ -14289,7 +14289,7 @@ struct object_with_zone<type::tuple<A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10,
         msgpack::object::with_zone& o,
         const type::tuple<A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, A13, A14, A15, A16, A17, A18, A19, A20, A21, A22, A23, A24, A25, A26, A27, A28, A29>& v) const {
         o.type = msgpack::type::ARRAY;
-        o.via.array.ptr = static_cast<msgpack::object*>(o.zone.allocate_align(sizeof(msgpack::object)*30));
+        o.via.array.ptr = static_cast<msgpack::object*>(o.zone.allocate_align(sizeof(msgpack::object)*30, MSGPACK_ZONE_ALIGNOF(msgpack::object)));
         o.via.array.size = 30;
         
         o.via.array.ptr[0] = msgpack::object(v.template get<0>(), o.zone);
@@ -14331,7 +14331,7 @@ struct object_with_zone<type::tuple<A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10,
         msgpack::object::with_zone& o,
         const type::tuple<A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, A13, A14, A15, A16, A17, A18, A19, A20, A21, A22, A23, A24, A25, A26, A27, A28, A29, A30>& v) const {
         o.type = msgpack::type::ARRAY;
-        o.via.array.ptr = static_cast<msgpack::object*>(o.zone.allocate_align(sizeof(msgpack::object)*31));
+        o.via.array.ptr = static_cast<msgpack::object*>(o.zone.allocate_align(sizeof(msgpack::object)*31, MSGPACK_ZONE_ALIGNOF(msgpack::object)));
         o.via.array.size = 31;
         
         o.via.array.ptr[0] = msgpack::object(v.template get<0>(), o.zone);
@@ -14374,7 +14374,7 @@ struct object_with_zone<type::tuple<A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10,
         msgpack::object::with_zone& o,
         const type::tuple<A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, A13, A14, A15, A16, A17, A18, A19, A20, A21, A22, A23, A24, A25, A26, A27, A28, A29, A30, A31>& v) const {
         o.type = msgpack::type::ARRAY;
-        o.via.array.ptr = static_cast<msgpack::object*>(o.zone.allocate_align(sizeof(msgpack::object)*32));
+        o.via.array.ptr = static_cast<msgpack::object*>(o.zone.allocate_align(sizeof(msgpack::object)*32, MSGPACK_ZONE_ALIGNOF(msgpack::object)));
         o.via.array.size = 32;
         
         o.via.array.ptr[0] = msgpack::object(v.template get<0>(), o.zone);
diff --git a/include/msgpack/v1/adaptor/detail/cpp11_define_array.hpp b/include/msgpack/v1/adaptor/detail/cpp11_define_array.hpp
index b51a4f6d6..702fea455 100644
--- a/include/msgpack/v1/adaptor/detail/cpp11_define_array.hpp
+++ b/include/msgpack/v1/adaptor/detail/cpp11_define_array.hpp
@@ -77,7 +77,7 @@ struct define_array {
     void msgpack_object(msgpack::object* o, msgpack::zone& z) const
     {
         o->type = msgpack::type::ARRAY;
-        o->via.array.ptr = static_cast<msgpack::object*>(z.allocate_align(sizeof(msgpack::object)*sizeof...(Args)));
+        o->via.array.ptr = static_cast<msgpack::object*>(z.allocate_align(sizeof(msgpack::object)*sizeof...(Args), MSGPACK_ZONE_ALIGNOF(msgpack::object)));
         o->via.array.size = sizeof...(Args);
 
         define_array_imp<std::tuple<Args&...>, sizeof...(Args)>::object(o, z, a);
diff --git a/include/msgpack/v1/adaptor/detail/cpp11_define_map.hpp b/include/msgpack/v1/adaptor/detail/cpp11_define_map.hpp
index 022b8ad6e..0fca1d870 100644
--- a/include/msgpack/v1/adaptor/detail/cpp11_define_map.hpp
+++ b/include/msgpack/v1/adaptor/detail/cpp11_define_map.hpp
@@ -83,7 +83,7 @@ struct define_map {
     {
         static_assert(sizeof...(Args) % 2 == 0, "");
         o->type = msgpack::type::MAP;
-        o->via.map.ptr = static_cast<msgpack::object_kv*>(z.allocate_align(sizeof(msgpack::object_kv)*sizeof...(Args)/2));
+        o->via.map.ptr = static_cast<msgpack::object_kv*>(z.allocate_align(sizeof(msgpack::object_kv)*sizeof...(Args)/2, MSGPACK_ZONE_ALIGNOF(msgpack::object_kv)));
         o->via.map.size = sizeof...(Args) / 2;
 
         define_map_imp<std::tuple<Args&...>, sizeof...(Args)>::object(o, z, a);
diff --git a/include/msgpack/v1/adaptor/detail/cpp11_msgpack_tuple.hpp b/include/msgpack/v1/adaptor/detail/cpp11_msgpack_tuple.hpp
index 1a0a3760f..9aa0c31a4 100644
--- a/include/msgpack/v1/adaptor/detail/cpp11_msgpack_tuple.hpp
+++ b/include/msgpack/v1/adaptor/detail/cpp11_msgpack_tuple.hpp
@@ -203,7 +203,7 @@ template <typename... Args>
         msgpack::object::with_zone& o,
         msgpack::type::tuple<Args...> const& v) const {
         o.type = msgpack::type::ARRAY;
-        o.via.array.ptr = static_cast<msgpack::object*>(o.zone.allocate_align(sizeof(msgpack::object)*sizeof...(Args)));
+        o.via.array.ptr = static_cast<msgpack::object*>(o.zone.allocate_align(sizeof(msgpack::object)*sizeof...(Args), MSGPACK_ZONE_ALIGNOF(msgpack::object)));
         o.via.array.size = sizeof...(Args);
         MsgpackTupleToObjectWithZone<decltype(v), sizeof...(Args)>::convert(o, v);
     }
diff --git a/include/msgpack/v1/adaptor/list.hpp b/include/msgpack/v1/adaptor/list.hpp
index 4d68065c5..d16c8d219 100644
--- a/include/msgpack/v1/adaptor/list.hpp
+++ b/include/msgpack/v1/adaptor/list.hpp
@@ -81,7 +81,7 @@ struct object_with_zone<std::list<T, Alloc> > {
         }
         else {
             uint32_t size = checked_get_container_size(v.size());
-            msgpack::object* p = static_cast<msgpack::object*>(o.zone.allocate_align(sizeof(msgpack::object)*size));
+            msgpack::object* p = static_cast<msgpack::object*>(o.zone.allocate_align(sizeof(msgpack::object)*size, MSGPACK_ZONE_ALIGNOF(msgpack::object)));
             msgpack::object* const pend = p + size;
             o.via.array.ptr = p;
             o.via.array.size = size;
diff --git a/include/msgpack/v1/adaptor/map.hpp b/include/msgpack/v1/adaptor/map.hpp
index 97dd5c09c..2c1793e16 100644
--- a/include/msgpack/v1/adaptor/map.hpp
+++ b/include/msgpack/v1/adaptor/map.hpp
@@ -109,7 +109,7 @@ struct object_with_zone<type::assoc_vector<K, V, Compare, Alloc> > {
         }
         else {
             uint32_t size = checked_get_container_size(v.size());
-            msgpack::object_kv* p = static_cast<msgpack::object_kv*>(o.zone.allocate_align(sizeof(msgpack::object_kv)*size));
+            msgpack::object_kv* p = static_cast<msgpack::object_kv*>(o.zone.allocate_align(sizeof(msgpack::object_kv)*size, MSGPACK_ZONE_ALIGNOF(msgpack::object_kv)));
             msgpack::object_kv* const pend = p + size;
             o.via.map.ptr  = p;
             o.via.map.size = size;
@@ -195,7 +195,7 @@ struct object_with_zone<std::map<K, V, Compare, Alloc> > {
         else {
             uint32_t size = checked_get_container_size(v.size());
 
-            msgpack::object_kv* p = static_cast<msgpack::object_kv*>(o.zone.allocate_align(sizeof(msgpack::object_kv)*size));
+            msgpack::object_kv* p = static_cast<msgpack::object_kv*>(o.zone.allocate_align(sizeof(msgpack::object_kv)*size, MSGPACK_ZONE_ALIGNOF(msgpack::object_kv)));
             msgpack::object_kv* const pend = p + size;
             o.via.map.ptr  = p;
             o.via.map.size = size;
@@ -288,7 +288,7 @@ struct object_with_zone<std::multimap<K, V, Compare, Alloc> > {
         }
         else {
             uint32_t size = checked_get_container_size(v.size());
-            msgpack::object_kv* p = static_cast<msgpack::object_kv*>(o.zone.allocate_align(sizeof(msgpack::object_kv)*size));
+            msgpack::object_kv* p = static_cast<msgpack::object_kv*>(o.zone.allocate_align(sizeof(msgpack::object_kv)*size, MSGPACK_ZONE_ALIGNOF(msgpack::object_kv)));
             msgpack::object_kv* const pend = p + size;
             o.via.map.ptr  = p;
             o.via.map.size = size;
diff --git a/include/msgpack/v1/adaptor/pair.hpp b/include/msgpack/v1/adaptor/pair.hpp
index 700a93b04..890abc2b8 100644
--- a/include/msgpack/v1/adaptor/pair.hpp
+++ b/include/msgpack/v1/adaptor/pair.hpp
@@ -64,7 +64,7 @@ template <typename T1, typename T2>
 struct object_with_zone<std::pair<T1, T2> > {
     void operator()(msgpack::object::with_zone& o, const std::pair<T1, T2>& v) const {
         o.type = msgpack::type::ARRAY;
-        msgpack::object* p = static_cast<msgpack::object*>(o.zone.allocate_align(sizeof(msgpack::object)*2));
+        msgpack::object* p = static_cast<msgpack::object*>(o.zone.allocate_align(sizeof(msgpack::object)*2, MSGPACK_ZONE_ALIGNOF(msgpack::object)));
         o.via.array.ptr = p;
         o.via.array.size = 2;
         p[0] = msgpack::object(v.first, o.zone);
diff --git a/include/msgpack/v1/adaptor/set.hpp b/include/msgpack/v1/adaptor/set.hpp
index fb98f8000..96abe25f0 100644
--- a/include/msgpack/v1/adaptor/set.hpp
+++ b/include/msgpack/v1/adaptor/set.hpp
@@ -87,7 +87,7 @@ struct object_with_zone<std::set<T, Compare, Alloc> > {
         }
         else {
             uint32_t size = checked_get_container_size(v.size());
-            msgpack::object* p = static_cast<msgpack::object*>(o.zone.allocate_align(sizeof(msgpack::object)*size));
+            msgpack::object* p = static_cast<msgpack::object*>(o.zone.allocate_align(sizeof(msgpack::object)*size, MSGPACK_ZONE_ALIGNOF(msgpack::object)));
             msgpack::object* const pend = p + size;
             o.via.array.ptr = p;
             o.via.array.size = size;
@@ -163,7 +163,7 @@ struct object_with_zone<std::multiset<T, Compare, Alloc> > {
             o.via.array.size = 0;
         } else {
             uint32_t size = checked_get_container_size(v.size());
-            msgpack::object* p = static_cast<msgpack::object*>(o.zone.allocate_align(sizeof(msgpack::object)*size));
+            msgpack::object* p = static_cast<msgpack::object*>(o.zone.allocate_align(sizeof(msgpack::object)*size, MSGPACK_ZONE_ALIGNOF(msgpack::object)));
             msgpack::object* const pend = p + size;
             o.via.array.ptr = p;
             o.via.array.size = size;
diff --git a/include/msgpack/v1/adaptor/tr1/unordered_map.hpp b/include/msgpack/v1/adaptor/tr1/unordered_map.hpp
index 62e77c11f..9c8190e85 100644
--- a/include/msgpack/v1/adaptor/tr1/unordered_map.hpp
+++ b/include/msgpack/v1/adaptor/tr1/unordered_map.hpp
@@ -84,7 +84,7 @@ struct object_with_zone<MSGPACK_STD_TR1::unordered_map<K, V, Hash, Pred, Alloc>
             o.via.map.size = 0;
         } else {
             uint32_t size = checked_get_container_size(v.size());
-            msgpack::object_kv* p = static_cast<msgpack::object_kv*>(o.zone.allocate_align(sizeof(msgpack::object_kv)*size));
+            msgpack::object_kv* p = static_cast<msgpack::object_kv*>(o.zone.allocate_align(sizeof(msgpack::object_kv)*size, MSGPACK_ZONE_ALIGNOF(msgpack::object_kv)));
             msgpack::object_kv* const pend = p + size;
             o.via.map.ptr  = p;
             o.via.map.size = size;
@@ -141,7 +141,7 @@ struct object_with_zone<MSGPACK_STD_TR1::unordered_multimap<K, V, Hash, Pred, Al
             o.via.map.size = 0;
         } else {
             uint32_t size = checked_get_container_size(v.size());
-            msgpack::object_kv* p = static_cast<msgpack::object_kv*>(o.zone.allocate_align(sizeof(msgpack::object_kv)*size));
+            msgpack::object_kv* p = static_cast<msgpack::object_kv*>(o.zone.allocate_align(sizeof(msgpack::object_kv)*size, MSGPACK_ZONE_ALIGNOF(msgpack::object_kv)));
             msgpack::object_kv* const pend = p + size;
             o.via.map.ptr  = p;
             o.via.map.size = size;
diff --git a/include/msgpack/v1/adaptor/tr1/unordered_set.hpp b/include/msgpack/v1/adaptor/tr1/unordered_set.hpp
index fcc76f3f0..dd6c0448f 100644
--- a/include/msgpack/v1/adaptor/tr1/unordered_set.hpp
+++ b/include/msgpack/v1/adaptor/tr1/unordered_set.hpp
@@ -82,7 +82,7 @@ struct object_with_zone<MSGPACK_STD_TR1::unordered_set<T, Hash, Compare, Alloc>
             o.via.array.size = 0;
         } else {
             uint32_t size = checked_get_container_size(v.size());
-            msgpack::object* p = static_cast<msgpack::object*>(o.zone.allocate_align(sizeof(msgpack::object)*size));
+            msgpack::object* p = static_cast<msgpack::object*>(o.zone.allocate_align(sizeof(msgpack::object)*size, MSGPACK_ZONE_ALIGNOF(msgpack::object)));
             msgpack::object* const pend = p + size;
             o.via.array.ptr = p;
             o.via.array.size = size;
@@ -136,7 +136,7 @@ struct object_with_zone<MSGPACK_STD_TR1::unordered_multiset<T, Hash, Compare, Al
             o.via.array.size = 0;
         } else {
             uint32_t size = checked_get_container_size(v.size());
-            msgpack::object* p = static_cast<msgpack::object*>(o.zone.allocate_align(sizeof(msgpack::object)*size));
+            msgpack::object* p = static_cast<msgpack::object*>(o.zone.allocate_align(sizeof(msgpack::object)*size, MSGPACK_ZONE_ALIGNOF(msgpack::object)));
             msgpack::object* const pend = p + size;
             o.via.array.ptr = p;
             o.via.array.size = size;
diff --git a/include/msgpack/v1/adaptor/vector.hpp b/include/msgpack/v1/adaptor/vector.hpp
index b23a18c17..2a0345b12 100644
--- a/include/msgpack/v1/adaptor/vector.hpp
+++ b/include/msgpack/v1/adaptor/vector.hpp
@@ -89,7 +89,7 @@ struct object_with_zone<std::vector<T, Alloc> > {
         }
         else {
             uint32_t size = checked_get_container_size(v.size());
-            msgpack::object* p = static_cast<msgpack::object*>(o.zone.allocate_align(sizeof(msgpack::object)*size));
+            msgpack::object* p = static_cast<msgpack::object*>(o.zone.allocate_align(sizeof(msgpack::object)*size, MSGPACK_ZONE_ALIGNOF(msgpack::object)));
             msgpack::object* const pend = p + size;
             o.via.array.ptr = p;
             o.via.array.size = size;
diff --git a/include/msgpack/v1/adaptor/vector_bool.hpp b/include/msgpack/v1/adaptor/vector_bool.hpp
index d1b213612..d6ec24592 100644
--- a/include/msgpack/v1/adaptor/vector_bool.hpp
+++ b/include/msgpack/v1/adaptor/vector_bool.hpp
@@ -65,7 +65,7 @@ struct object_with_zone<std::vector<bool, Alloc> > {
             o.via.array.size = 0;
         } else {
             uint32_t size = checked_get_container_size(v.size());
-            msgpack::object* p = static_cast<msgpack::object*>(o.zone.allocate_align(sizeof(msgpack::object)*size));
+            msgpack::object* p = static_cast<msgpack::object*>(o.zone.allocate_align(sizeof(msgpack::object)*size, MSGPACK_ZONE_ALIGNOF(msgpack::object)));
             msgpack::object* const pend = p + size;
             o.via.array.ptr = p;
             o.via.array.size = size;
diff --git a/include/msgpack/v1/detail/cpp03_zone.hpp b/include/msgpack/v1/detail/cpp03_zone.hpp
index 17bff2e2b..3b0bd238e 100644
--- a/include/msgpack/v1/detail/cpp03_zone.hpp
+++ b/include/msgpack/v1/detail/cpp03_zone.hpp
@@ -345,7 +345,7 @@ inline std::size_t aligned_size(
 template <typename T>
 T* zone::allocate()
 {
-    void* x = allocate_align(sizeof(T));
+    void* x = allocate_align(sizeof(T), MSGPACK_ZONE_ALIGNOF(T));
     try {
         m_finalizer_array.push(&zone::object_destruct<T>, x);
     } catch (...) {
@@ -364,7 +364,7 @@ T* zone::allocate()
 template <typename T, typename A1>
 T* zone::allocate(A1 a1)
 {
-    void* x = allocate_align(sizeof(T));
+    void* x = allocate_align(sizeof(T), MSGPACK_ZONE_ALIGNOF(T));
     try {
         m_finalizer_array.push(&zone::object_destruct<T>, x);
     } catch (...) {
@@ -383,7 +383,7 @@ T* zone::allocate(A1 a1)
 template <typename T, typename A1, typename A2>
 T* zone::allocate(A1 a1, A2 a2)
 {
-    void* x = allocate_align(sizeof(T));
+    void* x = allocate_align(sizeof(T), MSGPACK_ZONE_ALIGNOF(T));
     try {
         m_finalizer_array.push(&zone::object_destruct<T>, x);
     } catch (...) {
@@ -402,7 +402,7 @@ T* zone::allocate(A1 a1, A2 a2)
 template <typename T, typename A1, typename A2, typename A3>
 T* zone::allocate(A1 a1, A2 a2, A3 a3)
 {
-    void* x = allocate_align(sizeof(T));
+    void* x = allocate_align(sizeof(T), MSGPACK_ZONE_ALIGNOF(T));
     try {
         m_finalizer_array.push(&zone::object_destruct<T>, x);
     } catch (...) {
@@ -421,7 +421,7 @@ T* zone::allocate(A1 a1, A2 a2, A3 a3)
 template <typename T, typename A1, typename A2, typename A3, typename A4>
 T* zone::allocate(A1 a1, A2 a2, A3 a3, A4 a4)
 {
-    void* x = allocate_align(sizeof(T));
+    void* x = allocate_align(sizeof(T), MSGPACK_ZONE_ALIGNOF(T));
     try {
         m_finalizer_array.push(&zone::object_destruct<T>, x);
     } catch (...) {
@@ -440,7 +440,7 @@ T* zone::allocate(A1 a1, A2 a2, A3 a3, A4 a4)
 template <typename T, typename A1, typename A2, typename A3, typename A4, typename A5>
 T* zone::allocate(A1 a1, A2 a2, A3 a3, A4 a4, A5 a5)
 {
-    void* x = allocate_align(sizeof(T));
+    void* x = allocate_align(sizeof(T), MSGPACK_ZONE_ALIGNOF(T));
     try {
         m_finalizer_array.push(&zone::object_destruct<T>, x);
     } catch (...) {
@@ -459,7 +459,7 @@ T* zone::allocate(A1 a1, A2 a2, A3 a3, A4 a4, A5 a5)
 template <typename T, typename A1, typename A2, typename A3, typename A4, typename A5, typename A6>
 T* zone::allocate(A1 a1, A2 a2, A3 a3, A4 a4, A5 a5, A6 a6)
 {
-    void* x = allocate_align(sizeof(T));
+    void* x = allocate_align(sizeof(T), MSGPACK_ZONE_ALIGNOF(T));
     try {
         m_finalizer_array.push(&zone::object_destruct<T>, x);
     } catch (...) {
@@ -478,7 +478,7 @@ T* zone::allocate(A1 a1, A2 a2, A3 a3, A4 a4, A5 a5, A6 a6)
 template <typename T, typename A1, typename A2, typename A3, typename A4, typename A5, typename A6, typename A7>
 T* zone::allocate(A1 a1, A2 a2, A3 a3, A4 a4, A5 a5, A6 a6, A7 a7)
 {
-    void* x = allocate_align(sizeof(T));
+    void* x = allocate_align(sizeof(T), MSGPACK_ZONE_ALIGNOF(T));
     try {
         m_finalizer_array.push(&zone::object_destruct<T>, x);
     } catch (...) {
@@ -497,7 +497,7 @@ T* zone::allocate(A1 a1, A2 a2, A3 a3, A4 a4, A5 a5, A6 a6, A7 a7)
 template <typename T, typename A1, typename A2, typename A3, typename A4, typename A5, typename A6, typename A7, typename A8>
 T* zone::allocate(A1 a1, A2 a2, A3 a3, A4 a4, A5 a5, A6 a6, A7 a7, A8 a8)
 {
-    void* x = allocate_align(sizeof(T));
+    void* x = allocate_align(sizeof(T), MSGPACK_ZONE_ALIGNOF(T));
     try {
         m_finalizer_array.push(&zone::object_destruct<T>, x);
     } catch (...) {
@@ -516,7 +516,7 @@ T* zone::allocate(A1 a1, A2 a2, A3 a3, A4 a4, A5 a5, A6 a6, A7 a7, A8 a8)
 template <typename T, typename A1, typename A2, typename A3, typename A4, typename A5, typename A6, typename A7, typename A8, typename A9>
 T* zone::allocate(A1 a1, A2 a2, A3 a3, A4 a4, A5 a5, A6 a6, A7 a7, A8 a8, A9 a9)
 {
-    void* x = allocate_align(sizeof(T));
+    void* x = allocate_align(sizeof(T), MSGPACK_ZONE_ALIGNOF(T));
     try {
         m_finalizer_array.push(&zone::object_destruct<T>, x);
     } catch (...) {
@@ -535,7 +535,7 @@ T* zone::allocate(A1 a1, A2 a2, A3 a3, A4 a4, A5 a5, A6 a6, A7 a7, A8 a8, A9 a9)
 template <typename T, typename A1, typename A2, typename A3, typename A4, typename A5, typename A6, typename A7, typename A8, typename A9, typename A10>
 T* zone::allocate(A1 a1, A2 a2, A3 a3, A4 a4, A5 a5, A6 a6, A7 a7, A8 a8, A9 a9, A10 a10)
 {
-    void* x = allocate_align(sizeof(T));
+    void* x = allocate_align(sizeof(T), MSGPACK_ZONE_ALIGNOF(T));
     try {
         m_finalizer_array.push(&zone::object_destruct<T>, x);
     } catch (...) {
@@ -554,7 +554,7 @@ T* zone::allocate(A1 a1, A2 a2, A3 a3, A4 a4, A5 a5, A6 a6, A7 a7, A8 a8, A9 a9,
 template <typename T, typename A1, typename A2, typename A3, typename A4, typename A5, typename A6, typename A7, typename A8, typename A9, typename A10, typename A11>
 T* zone::allocate(A1 a1, A2 a2, A3 a3, A4 a4, A5 a5, A6 a6, A7 a7, A8 a8, A9 a9, A10 a10, A11 a11)
 {
-    void* x = allocate_align(sizeof(T));
+    void* x = allocate_align(sizeof(T), MSGPACK_ZONE_ALIGNOF(T));
     try {
         m_finalizer_array.push(&zone::object_destruct<T>, x);
     } catch (...) {
@@ -573,7 +573,7 @@ T* zone::allocate(A1 a1, A2 a2, A3 a3, A4 a4, A5 a5, A6 a6, A7 a7, A8 a8, A9 a9,
 template <typename T, typename A1, typename A2, typename A3, typename A4, typename A5, typename A6, typename A7, typename A8, typename A9, typename A10, typename A11, typename A12>
 T* zone::allocate(A1 a1, A2 a2, A3 a3, A4 a4, A5 a5, A6 a6, A7 a7, A8 a8, A9 a9, A10 a10, A11 a11, A12 a12)
 {
-    void* x = allocate_align(sizeof(T));
+    void* x = allocate_align(sizeof(T), MSGPACK_ZONE_ALIGNOF(T));
     try {
         m_finalizer_array.push(&zone::object_destruct<T>, x);
     } catch (...) {
@@ -592,7 +592,7 @@ T* zone::allocate(A1 a1, A2 a2, A3 a3, A4 a4, A5 a5, A6 a6, A7 a7, A8 a8, A9 a9,
 template <typename T, typename A1, typename A2, typename A3, typename A4, typename A5, typename A6, typename A7, typename A8, typename A9, typename A10, typename A11, typename A12, typename A13>
 T* zone::allocate(A1 a1, A2 a2, A3 a3, A4 a4, A5 a5, A6 a6, A7 a7, A8 a8, A9 a9, A10 a10, A11 a11, A12 a12, A13 a13)
 {
-    void* x = allocate_align(sizeof(T));
+    void* x = allocate_align(sizeof(T), MSGPACK_ZONE_ALIGNOF(T));
     try {
         m_finalizer_array.push(&zone::object_destruct<T>, x);
     } catch (...) {
@@ -611,7 +611,7 @@ T* zone::allocate(A1 a1, A2 a2, A3 a3, A4 a4, A5 a5, A6 a6, A7 a7, A8 a8, A9 a9,
 template <typename T, typename A1, typename A2, typename A3, typename A4, typename A5, typename A6, typename A7, typename A8, typename A9, typename A10, typename A11, typename A12, typename A13, typename A14>
 T* zone::allocate(A1 a1, A2 a2, A3 a3, A4 a4, A5 a5, A6 a6, A7 a7, A8 a8, A9 a9, A10 a10, A11 a11, A12 a12, A13 a13, A14 a14)
 {
-    void* x = allocate_align(sizeof(T));
+    void* x = allocate_align(sizeof(T), MSGPACK_ZONE_ALIGNOF(T));
     try {
         m_finalizer_array.push(&zone::object_destruct<T>, x);
     } catch (...) {
@@ -630,7 +630,7 @@ T* zone::allocate(A1 a1, A2 a2, A3 a3, A4 a4, A5 a5, A6 a6, A7 a7, A8 a8, A9 a9,
 template <typename T, typename A1, typename A2, typename A3, typename A4, typename A5, typename A6, typename A7, typename A8, typename A9, typename A10, typename A11, typename A12, typename A13, typename A14, typename A15>
 T* zone::allocate(A1 a1, A2 a2, A3 a3, A4 a4, A5 a5, A6 a6, A7 a7, A8 a8, A9 a9, A10 a10, A11 a11, A12 a12, A13 a13, A14 a14, A15 a15)
 {
-    void* x = allocate_align(sizeof(T));
+    void* x = allocate_align(sizeof(T), MSGPACK_ZONE_ALIGNOF(T));
     try {
         m_finalizer_array.push(&zone::object_destruct<T>, x);
     } catch (...) {
diff --git a/include/msgpack/v1/detail/cpp03_zone_decl.hpp b/include/msgpack/v1/detail/cpp03_zone_decl.hpp
index fd087ffa7..81825d0ec 100644
--- a/include/msgpack/v1/detail/cpp03_zone_decl.hpp
+++ b/include/msgpack/v1/detail/cpp03_zone_decl.hpp
@@ -24,6 +24,11 @@
 #define MSGPACK_ZONE_ALIGN sizeof(void*)
 #endif
 
+#if defined(_MSC_VER)
+#define MSGPACK_ZONE_ALIGNOF(type) __alignof(type)
+#else
+#define MSGPACK_ZONE_ALIGNOF(type) __alignof__(type)
+#endif
 
 namespace msgpack {
 
diff --git a/include/msgpack/v1/detail/cpp11_zone.hpp b/include/msgpack/v1/detail/cpp11_zone.hpp
index 377e90726..84dfea540 100644
--- a/include/msgpack/v1/detail/cpp11_zone.hpp
+++ b/include/msgpack/v1/detail/cpp11_zone.hpp
@@ -184,7 +184,6 @@ class zone {
 
     void swap(zone& o);
 
-
     static void* operator new(std::size_t size)
     {
         void* p = ::malloc(size);
@@ -329,7 +328,7 @@ inline void zone::undo_allocate(size_t size)
 template <typename T, typename... Args>
 T* zone::allocate(Args... args)
 {
-    void* x = allocate_align(sizeof(T));
+    void* x = allocate_align(sizeof(T), MSGPACK_ZONE_ALIGNOF(T));
     try {
         m_finalizer_array.push(&zone::object_destruct<T>, x);
     } catch (...) {
diff --git a/include/msgpack/v1/detail/cpp11_zone_decl.hpp b/include/msgpack/v1/detail/cpp11_zone_decl.hpp
index c2614e577..532c0a6ff 100644
--- a/include/msgpack/v1/detail/cpp11_zone_decl.hpp
+++ b/include/msgpack/v1/detail/cpp11_zone_decl.hpp
@@ -26,6 +26,12 @@
 #define MSGPACK_ZONE_ALIGN sizeof(void*)
 #endif
 
+#if defined(_MSC_VER)
+#define MSGPACK_ZONE_ALIGNOF(type) __alignof(type)
+#else
+#define MSGPACK_ZONE_ALIGNOF(type) __alignof__(type)
+#endif
+
 namespace msgpack {
 
 /// @cond
diff --git a/include/msgpack/v1/object.hpp b/include/msgpack/v1/object.hpp
index 1dd14d19b..a04059feb 100644
--- a/include/msgpack/v1/object.hpp
+++ b/include/msgpack/v1/object.hpp
@@ -154,13 +154,14 @@ inline std::size_t aligned_zone_size(msgpack::object const& obj) {
         break;
     case msgpack::type::EXT:
         s += msgpack::aligned_size(
-            detail::add_ext_type_size<sizeof(std::size_t)>(obj.via.ext.size));
+            detail::add_ext_type_size<sizeof(std::size_t)>(obj.via.ext.size),
+            MSGPACK_ZONE_ALIGNOF(msgpack::object));
         break;
     case msgpack::type::STR:
-        s += msgpack::aligned_size(obj.via.str.size);
+        s += msgpack::aligned_size(obj.via.str.size, MSGPACK_ZONE_ALIGNOF(msgpack::object));
         break;
     case msgpack::type::BIN:
-        s += msgpack::aligned_size(obj.via.bin.size);
+        s += msgpack::aligned_size(obj.via.bin.size, MSGPACK_ZONE_ALIGNOF(msgpack::object));
         break;
     default:
         break;
@@ -344,7 +345,7 @@ struct object_with_zone<msgpack::object> {
         }
 
         case msgpack::type::ARRAY:
-            o.via.array.ptr = static_cast<msgpack::object*>(o.zone.allocate_align(sizeof(msgpack::object) * v.via.array.size));
+            o.via.array.ptr = static_cast<msgpack::object*>(o.zone.allocate_align(sizeof(msgpack::object) * v.via.array.size, MSGPACK_ZONE_ALIGNOF(msgpack::object)));
             o.via.array.size = v.via.array.size;
             for (msgpack::object
                      * po(o.via.array.ptr),
@@ -357,7 +358,7 @@ struct object_with_zone<msgpack::object> {
             return;
 
         case msgpack::type::MAP:
-            o.via.map.ptr = (msgpack::object_kv*)o.zone.allocate_align(sizeof(msgpack::object_kv) * v.via.map.size);
+            o.via.map.ptr = (msgpack::object_kv*)o.zone.allocate_align(sizeof(msgpack::object_kv) * v.via.map.size, MSGPACK_ZONE_ALIGNOF(msgpack::object_kv));
             o.via.map.size = v.via.map.size;
             for(msgpack::object_kv
                     * po(o.via.map.ptr),
diff --git a/include/msgpack/v1/unpack.hpp b/include/msgpack/v1/unpack.hpp
index 1eb558204..c7bf59969 100644
--- a/include/msgpack/v1/unpack.hpp
+++ b/include/msgpack/v1/unpack.hpp
@@ -117,7 +117,7 @@ struct unpack_array {
         if (size / sizeof(msgpack::object) != n) {
             throw msgpack::array_size_overflow("array size overflow");
         }
-        o.via.array.ptr = static_cast<msgpack::object*>(u.zone().allocate_align(size));
+        o.via.array.ptr = static_cast<msgpack::object*>(u.zone().allocate_align(size, MSGPACK_ZONE_ALIGNOF(msgpack::object)));
     }
 };
 
@@ -139,7 +139,7 @@ struct unpack_map {
         if (size / sizeof(msgpack::object_kv) != n) {
             throw msgpack::map_size_overflow("map size overflow");
         }
-        o.via.map.ptr = static_cast<msgpack::object_kv*>(u.zone().allocate_align(size));
+        o.via.map.ptr = static_cast<msgpack::object_kv*>(u.zone().allocate_align(size, MSGPACK_ZONE_ALIGNOF(msgpack::object_kv)));
     }
 };
 
@@ -164,7 +164,7 @@ inline void unpack_str(unpack_user& u, const char* p, uint32_t l, msgpack::objec
     }
     else {
         if (l > u.limit().str()) throw msgpack::str_size_overflow("str size overflow");
-        char* tmp = static_cast<char*>(u.zone().allocate_align(l));
+        char* tmp = static_cast<char*>(u.zone().allocate_align(l, MSGPACK_ZONE_ALIGNOF(char)));
         std::memcpy(tmp, p, l);
         o.via.str.ptr = tmp;
     }
@@ -180,7 +180,7 @@ inline void unpack_bin(unpack_user& u, const char* p, uint32_t l, msgpack::objec
     }
     else {
         if (l > u.limit().bin()) throw msgpack::bin_size_overflow("bin size overflow");
-        char* tmp = static_cast<char*>(u.zone().allocate_align(l));
+        char* tmp = static_cast<char*>(u.zone().allocate_align(l, MSGPACK_ZONE_ALIGNOF(char)));
         std::memcpy(tmp, p, l);
         o.via.bin.ptr = tmp;
     }
@@ -196,7 +196,7 @@ inline void unpack_ext(unpack_user& u, const char* p, std::size_t l, msgpack::ob
     }
     else {
         if (l > u.limit().ext()) throw msgpack::ext_size_overflow("ext size overflow");
-        char* tmp = static_cast<char*>(u.zone().allocate_align(l));
+        char* tmp = static_cast<char*>(u.zone().allocate_align(l, MSGPACK_ZONE_ALIGNOF(char)));
         std::memcpy(tmp, p, l);
         o.via.ext.ptr = tmp;
     }
diff --git a/include/msgpack/v2/create_object_visitor.hpp b/include/msgpack/v2/create_object_visitor.hpp
index 2c11cf2fd..9868a994d 100644
--- a/include/msgpack/v2/create_object_visitor.hpp
+++ b/include/msgpack/v2/create_object_visitor.hpp
@@ -113,7 +113,7 @@ class create_object_visitor : public msgpack::v2::null_visitor {
             set_referenced(true);
         }
         else {
-            char* tmp = static_cast<char*>(zone().allocate_align(size));
+            char* tmp = static_cast<char*>(zone().allocate_align(size, MSGPACK_ZONE_ALIGNOF(char)));
             std::memcpy(tmp, v, size);
             obj->via.str.ptr = tmp;
         }
@@ -129,7 +129,7 @@ class create_object_visitor : public msgpack::v2::null_visitor {
             set_referenced(true);
         }
         else {
-            char* tmp = static_cast<char*>(zone().allocate_align(size));
+            char* tmp = static_cast<char*>(zone().allocate_align(size, MSGPACK_ZONE_ALIGNOF(char)));
             std::memcpy(tmp, v, size);
             obj->via.bin.ptr = tmp;
         }
@@ -145,7 +145,7 @@ class create_object_visitor : public msgpack::v2::null_visitor {
             set_referenced(true);
         }
         else {
-            char* tmp = static_cast<char*>(zone().allocate_align(size));
+            char* tmp = static_cast<char*>(zone().allocate_align(size, MSGPACK_ZONE_ALIGNOF(char)));
             std::memcpy(tmp, v, size);
             obj->via.ext.ptr = tmp;
         }
@@ -167,7 +167,7 @@ class create_object_visitor : public msgpack::v2::null_visitor {
                 throw msgpack::array_size_overflow("array size overflow");
             }
             obj->via.array.ptr =
-                static_cast<msgpack::object*>(m_zone->allocate_align(size));
+                static_cast<msgpack::object*>(m_zone->allocate_align(size, MSGPACK_ZONE_ALIGNOF(msgpack::object)));
         }
         m_stack.push_back(obj->via.array.ptr);
         return true;
@@ -198,7 +198,7 @@ class create_object_visitor : public msgpack::v2::null_visitor {
                 throw msgpack::map_size_overflow("map size overflow");
             }
             obj->via.map.ptr =
-                static_cast<msgpack::object_kv*>(m_zone->allocate_align(size));
+                static_cast<msgpack::object_kv*>(m_zone->allocate_align(size, MSGPACK_ZONE_ALIGNOF(msgpack::object_kv)));
         }
         m_stack.push_back(reinterpret_cast<msgpack::object*>(obj->via.map.ptr));
         return true;
diff --git a/include/msgpack/v2/unpack.hpp b/include/msgpack/v2/unpack.hpp
index c28200798..56560c5b2 100644
--- a/include/msgpack/v2/unpack.hpp
+++ b/include/msgpack/v2/unpack.hpp
@@ -20,6 +20,7 @@ namespace msgpack {
 MSGPACK_API_VERSION_NAMESPACE(v2) {
 /// @endcond
 
+
 struct zone_push_finalizer {
     zone_push_finalizer(msgpack::zone& z):m_z(&z) {}
     void set_zone(msgpack::zone& z) { m_z = &z; }
diff --git a/test/object.cpp b/test/object.cpp
index 4bb4b8bd4..1fd19451b 100644
--- a/test/object.cpp
+++ b/test/object.cpp
@@ -181,7 +181,7 @@ TEST(object, cross_zone_copy_ext)
     msgpack::object::with_zone obj1(z1);
 
     obj1.type = msgpack::type::EXT;
-    char* ptr = static_cast<char*>(obj1.zone.allocate_align(2));
+    char* ptr = static_cast<char*>(obj1.zone.allocate_align(2, MSGPACK_ZONE_ALIGNOF(char)));
     ptr[0] = 1;
     ptr[1] = 2;
     obj1.via.ext.ptr = ptr;
@@ -204,7 +204,7 @@ TEST(object, cross_zone_copy_construct_ext)
     msgpack::object::with_zone obj1(z1);
 
     obj1.type = msgpack::type::EXT;
-    char* ptr = static_cast<char*>(obj1.zone.allocate_align(2));
+    char* ptr = static_cast<char*>(obj1.zone.allocate_align(2, MSGPACK_ZONE_ALIGNOF(char)));
     ptr[0] = 1;
     ptr[1] = 2;
     obj1.via.ext.ptr = ptr;