diff --git a/src/msw/frame.cpp b/src/msw/frame.cpp
index 34e00745ec..673f1d989a 100644
--- a/src/msw/frame.cpp
+++ b/src/msw/frame.cpp
@@ -57,12 +57,6 @@
     #include "wx/univ/colschem.h"
 #endif // __WXUNIVERSAL__
 
-// FIXME-VC6: Only VC6 doesn't have this in its standard headers so this
-//            could be removed once support for it is dropped.
-#ifndef WM_UNINITMENUPOPUP
-    #define WM_UNINITMENUPOPUP 0x0125
-#endif
-
 // ----------------------------------------------------------------------------
 // globals
 // ----------------------------------------------------------------------------
diff --git a/src/msw/toplevel.cpp b/src/msw/toplevel.cpp
index a4610c3c20..93f05893b2 100644
--- a/src/msw/toplevel.cpp
+++ b/src/msw/toplevel.cpp
@@ -63,6 +63,12 @@
     #define ICON_SMALL 0
 #endif
 
+// FIXME-VC6: Only VC6 doesn't have this in its standard headers so this
+//            could be removed once support for it is dropped.
+#ifndef WM_UNINITMENUPOPUP
+    #define WM_UNINITMENUPOPUP 0x0125
+#endif
+
 // ----------------------------------------------------------------------------
 // globals
 // ----------------------------------------------------------------------------