diff --git a/include/wx/iconbndl.h b/include/wx/iconbndl.h
index 24ccb6b56e..1f0747547d 100644
--- a/include/wx/iconbndl.h
+++ b/include/wx/iconbndl.h
@@ -87,7 +87,7 @@ public:
 #if WXWIN_COMPATIBILITY_2_8
     wxDEPRECATED( void AddIcon(const wxString& file, long type)
         {
-            AddIcon(file, (long)type);
+            AddIcon(file, (wxBitmapType)type);
         }
     )