diff --git a/include/wx/mac/carbon/toplevel.h b/include/wx/mac/carbon/toplevel.h
index f1f3f51651..1231f08f0e 100644
--- a/include/wx/mac/carbon/toplevel.h
+++ b/include/wx/mac/carbon/toplevel.h
@@ -83,7 +83,4 @@ private :
     DECLARE_EVENT_TABLE()
 };
 
-// list of all frames and modeless dialogs
-extern WXDLLEXPORT_DATA(wxWindowList) wxModelessWindows;
-
 #endif // _WX_MSW_TOPLEVEL_H_