diff --git a/include/wx/msw/private.h b/include/wx/msw/private.h
index b11c9c455a..729fde3434 100644
--- a/include/wx/msw/private.h
+++ b/include/wx/msw/private.h
@@ -824,7 +824,8 @@ enum wxWinVersion
     wxWinVersion_2003 = 0x0502,
 
     wxWinVersion_6 = 0x0600,
-    wxWinVersion_NT6 = 0x0600
+    wxWinVersion_Vista = wxWinVersion_6
+    wxWinVersion_NT6 = wxWinVersion_6
 };
 
 WXDLLIMPEXP_BASE wxWinVersion wxGetWinVersion();