diff --git a/cocoa.m b/cocoa.m
index bb4325ce0b..56c789a98c 100644
--- a/cocoa.m
+++ b/cocoa.m
@@ -740,6 +740,7 @@ static int cocoa_keycode_to_qemu(int keycode)
         [normalWindow setAcceptsMouseMovedEvents:YES];
         [normalWindow setTitle:[NSString stringWithFormat:@"QEMU"]];
         [normalWindow setContentView:cocoaView];
+        [normalWindow useOptimizedDrawing:YES];
         [normalWindow makeKeyAndOrderFront:self];
 		[normalWindow center];