diff --git a/include/wx/any.h b/include/wx/any.h
index e4aacabba9..13e5d10803 100644
--- a/include/wx/any.h
+++ b/include/wx/any.h
@@ -514,7 +514,7 @@ bool operator==(TUS value) const \
 // As standard, wxAny can store value of almost any type, in a fairly
 // optimal manner even.
 //
-class WXDLLIMPEXP_BASE wxAny
+class wxAny
 {
 public:
     /**
@@ -755,7 +755,15 @@ public:
 
 private:
     // Assignment functions
-    void AssignAny(const wxAny &any);
+    void AssignAny(const wxAny& any)
+    {
+        if ( !any.m_type->IsSameType(m_type) )
+        {
+            m_type->DeleteValue(m_buffer);
+            m_type = any.m_type;
+        }
+        m_type->CopyBuffer(any.m_buffer, m_buffer);
+    }
 
     template<typename T>
     void Assign(const T &value)
diff --git a/src/common/any.cpp b/src/common/any.cpp
index 9923d3ef07..9ac859b6e1 100644
--- a/src/common/any.cpp
+++ b/src/common/any.cpp
@@ -105,20 +105,6 @@ wxAnyValueType::wxAnyValueType()
     g_wxAnyValueTypeGlobals->RegisterValueType(this);
 }
 
-//-------------------------------------------------------------------------
-// wxAny
-//-------------------------------------------------------------------------
-
-void wxAny::AssignAny(const wxAny &any)
-{
-    if ( !any.m_type->IsSameType(m_type) )
-    {
-        m_type->DeleteValue(m_buffer);
-        m_type = any.m_type;
-    }
-    m_type->CopyBuffer(any.m_buffer, m_buffer);
-}
-
 //-------------------------------------------------------------------------
 // Dynamic conversion member functions
 //-------------------------------------------------------------------------