diff --git a/filters/ColorizationFilter.cpp b/filters/ColorizationFilter.cpp
index 0b543a3317..2372683e7e 100644
--- a/filters/ColorizationFilter.cpp
+++ b/filters/ColorizationFilter.cpp
@@ -126,6 +126,14 @@ ColorizationFilter::BandInfo parseDim(const std::string& dim,
 
 } // unnamed namespace
 
+ColorizationFilter::ColorizationFilter()
+{}
+
+
+ColorizationFilter::~ColorizationFilter()
+{}
+
+
 void ColorizationFilter::addArgs(ProgramArgs& args)
 {
     args.add("raster", "Raster filename", m_rasterFilename);
diff --git a/filters/ColorizationFilter.hpp b/filters/ColorizationFilter.hpp
index 807ec095cb..da6bc2d356 100644
--- a/filters/ColorizationFilter.hpp
+++ b/filters/ColorizationFilter.hpp
@@ -69,9 +69,9 @@ class PDAL_DLL ColorizationFilter : public Filter, public Streamable
         Dimension::Type m_type;
     };
 
+    ColorizationFilter();
+    ~ColorizationFilter();
 
-    ColorizationFilter()
-    {}
     ColorizationFilter& operator=(const ColorizationFilter&) = delete;
     ColorizationFilter(const ColorizationFilter&) = delete;
 
diff --git a/filters/PMFFilter.cpp b/filters/PMFFilter.cpp
index e3da92d9e9..e15f82ddb0 100644
--- a/filters/PMFFilter.cpp
+++ b/filters/PMFFilter.cpp
@@ -74,6 +74,11 @@ CREATE_STATIC_STAGE(PMFFilter, s_info)
 PMFFilter::PMFFilter() : m_args(new PMFArgs)
 {}
 
+
+PMFFilter::~PMFFilter()
+{}
+
+
 std::string PMFFilter::getName() const
 {
     return s_info.name;
diff --git a/filters/PMFFilter.hpp b/filters/PMFFilter.hpp
index fb691d78a6..901521b9f5 100644
--- a/filters/PMFFilter.hpp
+++ b/filters/PMFFilter.hpp
@@ -47,6 +47,7 @@ class PDAL_DLL PMFFilter : public Filter
 {
 public:
     PMFFilter();
+    ~PMFFilter();
 
     std::string getName() const;
 
diff --git a/filters/SMRFilter.cpp b/filters/SMRFilter.cpp
index 26ae0dc79c..953400fe58 100644
--- a/filters/SMRFilter.cpp
+++ b/filters/SMRFilter.cpp
@@ -90,6 +90,10 @@ SMRFilter::SMRFilter() : m_args(new SMRArgs)
 {}
 
 
+SMRFilter::~SMRFilter()
+{}
+
+
 std::string SMRFilter::getName() const
 {
     return s_info.name;
diff --git a/filters/SMRFilter.hpp b/filters/SMRFilter.hpp
index 466b303380..baf2383326 100644
--- a/filters/SMRFilter.hpp
+++ b/filters/SMRFilter.hpp
@@ -48,6 +48,7 @@ class PDAL_DLL SMRFilter : public Filter
 {
 public:
     SMRFilter();
+    ~SMRFilter();
 
     std::string getName() const;