diff --git a/include/wx/fs_mem.h b/include/wx/fs_mem.h
index 62aff0c71c..9309d39b96 100644
--- a/include/wx/fs_mem.h
+++ b/include/wx/fs_mem.h
@@ -50,10 +50,9 @@ public:
     virtual wxString FindFirst(const wxString& spec, int flags = 0);
     virtual wxString FindNext();
 
-private:
-    static wxHashTable *m_Hash;
-
+protected:
     static bool CheckHash(const wxString& filename);
+    static wxHashTable *m_Hash;
 };
 
 class wxMemoryFSHandler : public wxMemoryFSHandlerBase
diff --git a/src/common/fs_mem.cpp b/src/common/fs_mem.cpp
index c94c250e4b..d1129f30b4 100644
--- a/src/common/fs_mem.cpp
+++ b/src/common/fs_mem.cpp
@@ -23,7 +23,6 @@
 #include "wx/bitmap.h"
 #include "wx/fs_mem.h"
 
-#ifdef __WXBASE__
 
 #ifndef WXPRECOMP
     #include "wx/intl.h"
@@ -75,6 +74,8 @@ class MemFSHashObj : public wxObject
         }
 };
 
+#ifdef __WXBASE__
+
 
 //--------------------------------------------------------------------------------
 // wxMemoryFSHandler
@@ -206,11 +207,10 @@ bool wxMemoryFSHandlerBase::CheckHash(const wxString& filename)
 
 #if wxUSE_IMAGE
 /*static*/ void
-wxMemoryFSHandlerBase::AddFile(const wxString& filename, wxImage& image, long type)
+wxMemoryFSHandler::AddFile(const wxString& filename, wxImage& image, long type)
 {
     if (!CheckHash(filename)) return;
 
-
     wxMemoryOutputStream mems;
     if (image.Ok() && image.SaveFile(mems, (int)type))
         m_Hash -> Put(filename, new MemFSHashObj(mems));