diff --git a/include/wx/cocoa/toplevel.h b/include/wx/cocoa/toplevel.h
index cb45fd5ca5..9af31a2e51 100644
--- a/include/wx/cocoa/toplevel.h
+++ b/include/wx/cocoa/toplevel.h
@@ -20,8 +20,8 @@
 // ========================================================================
 class WXDLLEXPORT wxTopLevelWindowCocoa : public wxTopLevelWindowBase, protected wxCocoaNSWindow
 {
-    DECLARE_CLASS(wxTopLevelWindowCocoa);
     DECLARE_EVENT_TABLE();
+    DECLARE_NO_COPY_CLASS(wxTopLevelWindowCocoa);
 // ------------------------------------------------------------------------
 // initialization
 // ------------------------------------------------------------------------
diff --git a/src/cocoa/toplevel.mm b/src/cocoa/toplevel.mm
index 93fb983c77..f20e2baead 100644
--- a/src/cocoa/toplevel.mm
+++ b/src/cocoa/toplevel.mm
@@ -43,7 +43,6 @@ wxWindowList       wxModelessWindows;
 // ----------------------------------------------------------------------------
 // wxTopLevelWindowCocoa creation
 // ----------------------------------------------------------------------------
-IMPLEMENT_CLASS(wxTopLevelWindowCocoa,wxWindowCocoa)
 BEGIN_EVENT_TABLE(wxTopLevelWindowCocoa,wxTopLevelWindowBase)
     EVT_CLOSE(wxTopLevelWindowCocoa::OnCloseWindow)
 END_EVENT_TABLE()