diff --git a/include/wx/colour.h b/include/wx/colour.h
index b0296e860e..80b36ec684 100644
--- a/include/wx/colour.h
+++ b/include/wx/colour.h
@@ -58,7 +58,7 @@ DECLARE_VARIANT_OBJECT_EXPORTED(wxColour,WXDLLEXPORT)
 //               code redundancy in all native wxColour implementations
 //-----------------------------------------------------------------------------
 
-#if defined( __WXMAC__ ) || defined( __WXMSW__ )
+#if defined( __WXMAC__ ) || defined( __WXMSW__ ) || defined( __WXPM__ )
 #define wxCOLOUR_IS_GDIOBJECT 0
 #else
 #define wxCOLOUR_IS_GDIOBJECT 1
diff --git a/src/os2/colour.cpp b/src/os2/colour.cpp
index d1add0c9c3..7dea13b85a 100644
--- a/src/os2/colour.cpp
+++ b/src/os2/colour.cpp
@@ -22,7 +22,7 @@
 #define INCL_PM
 #include<os2.h>
 
-IMPLEMENT_DYNAMIC_CLASS(wxColour, wxGDIObject)
+IMPLEMENT_DYNAMIC_CLASS(wxColour, wxObject)
 
 // Colour