diff --git a/src/plugins/platforms/cocoa/qcocoamenuloader.h b/src/plugins/platforms/cocoa/qcocoamenuloader.h
index 128792410b5..b0d61fa5415 100644
--- a/src/plugins/platforms/cocoa/qcocoamenuloader.h
+++ b/src/plugins/platforms/cocoa/qcocoamenuloader.h
@@ -88,6 +88,7 @@
 - (IBAction)qtDispatcherToQAction:(id)sender;
 - (void)qtUpdateMenubar;
 - (void)orderFrontCharacterPalette:(id)sender;
+- (BOOL)validateMenuItem:(NSMenuItem*)menuItem;
 @end
 
 void qt_mac_loadMenuNib(QT_MANGLE_NAMESPACE(QCocoaMenuLoader) *qtMenuLoader);
diff --git a/src/plugins/platforms/cocoa/qcocoamenuloader.mm b/src/plugins/platforms/cocoa/qcocoamenuloader.mm
index 4993937b91a..2fdc28de1e0 100644
--- a/src/plugins/platforms/cocoa/qcocoamenuloader.mm
+++ b/src/plugins/platforms/cocoa/qcocoamenuloader.mm
@@ -310,4 +310,16 @@ void qt_mac_loadMenuNib(QT_MANGLE_NAMESPACE(QCocoaMenuLoader) *qtMenuLoader)
  {
      [NSApp orderFrontCharacterPalette:sender];
  }
+
+- (BOOL)validateMenuItem:(NSMenuItem*)menuItem
+{
+    if ([menuItem action] == @selector(hide:)
+        || [menuItem action] == @selector(hideOtherApplications:)
+        || [menuItem action] == @selector(unhideAllApplications:)) {
+        return [NSApp validateMenuItem:menuItem];
+    } else {
+        return [menuItem isEnabled];
+    }
+}
+
 @end
diff --git a/src/plugins/platforms/cocoa/qt_menu.nib/keyedobjects.nib b/src/plugins/platforms/cocoa/qt_menu.nib/keyedobjects.nib
index 3edb0ed2ebf..67207ca6283 100644
Binary files a/src/plugins/platforms/cocoa/qt_menu.nib/keyedobjects.nib and b/src/plugins/platforms/cocoa/qt_menu.nib/keyedobjects.nib differ