diff --git a/.travis.yml b/.travis.yml
new file mode 100644
index 0000000..72661a9
--- /dev/null
+++ b/.travis.yml
@@ -0,0 +1,29 @@
+language: erlang
+
+env:
+  global:
+    - PLATFORM=linux
+    - LUAROCKS_VER=2.1.0
+  matrix:
+    - LUA=lua5.1 LUA_SFX=
+    - LUA=lua5.2 LUA_SFX=
+    - LUA=luajit LUA_SFX=jit
+    - LUA=lua5.3 LUA_SFX=
+
+before_install:
+  - bash .travis/setup_lua.sh
+  - sudo pip install cpp-coveralls
+
+install:
+  - sudo luarocks make rockspec/lua-cmsgpack-scm-1.rockspec CFLAGS="-O2 -fPIC -ftest-coverage -fprofile-arcs" LIBFLAG="-shared --coverage"
+
+script: 
+  - lua$LUA_SFX test.lua
+
+after_success:
+  - coveralls
+
+notifications:
+  email:
+    on_success: change
+    on_failure: always
diff --git a/.travis/setup_lua.sh b/.travis/setup_lua.sh
new file mode 100644
index 0000000..8514adf
--- /dev/null
+++ b/.travis/setup_lua.sh
@@ -0,0 +1,50 @@
+# A script for setting up environment for travis-ci testing.
+# Sets up Lua and Luarocks.
+# LUA must be "lua5.1", "lua5.2" or "luajit".
+# PLATFORM must be "linux" or "macosx".
+
+if [ "$LUA" == "luajit" ]; then
+  curl http://luajit.org/download/LuaJIT-2.0.2.tar.gz | tar xz
+  cd LuaJIT-2.0.2
+  make && sudo make install
+  cd $TRAVIS_BUILD_DIR;
+else
+  if [ "$LUA" == "lua5.1" ]; then
+    curl http://www.lua.org/ftp/lua-5.1.5.tar.gz | tar xz
+    cd lua-5.1.5;
+  elif [ "$LUA" == "lua5.2" ]; then
+    curl http://www.lua.org/ftp/lua-5.2.3.tar.gz | tar xz
+    cd lua-5.2.3;
+  elif [ "$LUA" == "lua5.3" ]; then
+    curl http://www.lua.org/work/lua-5.3.0-work2.tar.gz | tar xz
+    cd lua-5.3.0-work2;
+  fi
+  sudo make $PLATFORM install
+  cd $TRAVIS_BUILD_DIR;
+fi
+
+LUAROCKS_BASE=luarocks-$LUAROCKS_VER
+curl http://luarocks.org/releases/$LUAROCKS_BASE.tar.gz | tar xz
+cd $LUAROCKS_BASE;
+
+if [ "$LUA" == "luajit" ]; then
+  ./configure --lua-suffix=jit --with-lua-include=/usr/local/include/luajit-2.0;
+else
+  ./configure;
+fi
+
+make && sudo make install
+
+cd $TRAVIS_BUILD_DIR
+
+rm -rf $LUAROCKS_BASE
+
+if [ "$LUA" == "luajit" ]; then
+  rm -rf LuaJIT-2.0.2;
+elif [ "$LUA" == "lua5.1" ]; then
+  rm -rf lua-5.1.5;
+elif [ "$LUA" == "lua5.2" ]; then
+  rm -rf lua-5.2.3;
+elif [ "$LUA" == "lua5.3" ]; then
+  rm -rf lua-5.3.0-work2;
+fi
diff --git a/lua_cmsgpack.c b/lua_cmsgpack.c
index 6b9e9d1..3a2d028 100644
--- a/lua_cmsgpack.c
+++ b/lua_cmsgpack.c
@@ -13,11 +13,9 @@
 #define LUACMSGPACK_COPYRIGHT   "Copyright (C) 2012, Salvatore Sanfilippo"
 #define LUACMSGPACK_DESCRIPTION "MessagePack C implementation for Lua"
 
-#define LUACMSGPACK_MAX_NESTING  16 /* Max tables nesting. */
-
 /* Allows a preprocessor directive to override MAX_NESTING */
 #ifndef LUACMSGPACK_MAX_NESTING
-    #define LUACMSGPACK_MAX_NESTING  16
+    #define LUACMSGPACK_MAX_NESTING  16 /* Max tables nesting. */
 #endif
 
 #if (_XOPEN_SOURCE >= 600 || _ISOC99_SOURCE || _POSIX_C_SOURCE >= 200112L)
@@ -33,7 +31,7 @@
 #define IS_INT_EQUIVALENT(x) IS_INT_TYPE_EQUIVALENT(x, int)
 
 #if LUA_VERSION_NUM < 503
-    #define lua_pushunsigned(L, n) lua_pushinteger(L, n)
+    #define lua_pushunsigned(L, n) ((sizeof(lua_Integer) < 64) ? lua_pushnumber(L, n) : lua_pushinteger(L, n))
 #endif
 
 /* =============================================================================
@@ -350,8 +348,17 @@ static void mp_encode_lua_bool(lua_State *L, mp_buf *buf) {
 
 /* Lua 5.3 has a built in 64-bit integer type */
 static void mp_encode_lua_integer(lua_State *L, mp_buf *buf) {
-    lua_Integer i = lua_tointeger(L,-1);
-    mp_encode_int(buf, (int64_t)i);
+#if LUA_VERSION_NUM < 503
+    if(sizeof(lua_Integer) < 64){
+        lua_Number i = lua_tonumber(L,-1);
+        mp_encode_int(buf, (int64_t)i);
+    }
+    else
+#endif
+    { // MSVC
+        lua_Integer i = lua_tointeger(L,-1);
+        mp_encode_int(buf, (int64_t)i);
+    }
 }
 
 /* Lua 5.2 and lower only has 64-bit doubles, so we need to
@@ -433,10 +440,11 @@ static int table_is_an_array(lua_State *L) {
         /* The <= 0 check is valid here because we're comparing indexes. */
 #if LUA_VERSION_NUM < 503
         if ((LUA_TNUMBER != lua_type(L,-1)) || (n = lua_tonumber(L, -1)) <= 0 ||
-            !IS_INT_EQUIVALENT(n)) {
+            !IS_INT_EQUIVALENT(n))
 #else
-        if (!lua_isinteger(L,-1) || (n = lua_tointeger(L, -1)) <= 0) {
+        if (!lua_isinteger(L,-1) || (n = lua_tointeger(L, -1)) <= 0)
 #endif
+        {
             lua_settop(L, stacktop);
             return 0;
         }
@@ -630,7 +638,12 @@ void mp_decode_to_lua_type(lua_State *L, mp_cur *c) {
         break;
     case 0xd3:  /* int 64 */
         mp_cur_need(c,9);
-        lua_pushinteger(L,
+#if LUA_VERSION_NUM < 503
+        lua_pushnumber
+#else
+        lua_pushinteger
+#endif
+        (L,
             ((int64_t)c->p[1] << 56) |
             ((int64_t)c->p[2] << 48) |
             ((int64_t)c->p[3] << 40) |
diff --git a/test.lua b/test.lua
index 000e9d4..1e52f21 100644
--- a/test.lua
+++ b/test.lua
@@ -6,6 +6,10 @@ local cmsgpack = require "cmsgpack"
 local ok, cmsgpack_safe = pcall(require, 'cmsgpack.safe')
 if not ok then cmsgpack_safe = nil end
 
+print("------------------------------------")
+print("Lua version: " .. (_G.jit and _G.jit.version or _G._VERSION))
+print("------------------------------------")
+
 local unpack = unpack or table.unpack
 
 passed = 0