diff --git a/lcl/interfaces/qt/qtwidgets.pas b/lcl/interfaces/qt/qtwidgets.pas
index 9f5b403a3f..9aaf3f98cd 100644
--- a/lcl/interfaces/qt/qtwidgets.pas
+++ b/lcl/interfaces/qt/qtwidgets.pas
@@ -5446,8 +5446,20 @@ begin
     end;
 
     // Main menu bar
+    {$IFDEF DARWIN}
+    // do not show menubar for empty menus
+    if (QtVersionMajor = 4) and (QtVersionMinor >= 6) then
+      QCoreApplication_setAttribute(QtAA_DontUseNativeMenuBar,
+        not Assigned(TCustomForm(LCLObject).Menu));
+    {$ENDIF}
+
     MenuBar := TQtMenuBar.Create(Result);
 
+    {$IFDEF DARWIN}
+    if (QtVersionMajor = 4) and (QtVersionMinor >= 6) then
+      QCoreApplication_setAttribute(QtAA_DontUseNativeMenuBar, False);
+    {$ENDIF}
+
     FCentralWidget := QWidget_create(Result);
     QWidget_setMouseTracking(FCentralWidget, True);