diff --git a/lib/renderer/webview/webview.h b/lib/renderer/webview/webview.h
index da041b0d..c1733c85 100644
--- a/lib/renderer/webview/webview.h
+++ b/lib/renderer/webview/webview.h
@@ -2337,11 +2337,10 @@ struct webview_priv
     size.width = width;
     size.height = height;
     [w->priv.window setMaxSize:size];
-    
-    [w->priv.window setCollectionBehavior:NSWindowCollectionBehaviorFullScreenAuxiliary|NSWindowCollectionBehaviorFullScreenNone|NSWindowCollectionBehaviorFullScreenDisallowsTiling];
-       
+
     NSButton *button = [w->priv.window standardWindowButton:NSWindowZoomButton];
-    [button setEnabled: NO];
+    [button performSelectorOnMainThread:@selector(setEnabled:) withObject:NO
+    waitUntilDone:NO];
   }
   
   WEBVIEW_API void webview_set_fullscreen(struct webview *w, int fullscreen)