diff --git a/js/Windows.js b/js/Windows.js
index 435a91de..a86d04ce 100644
--- a/js/Windows.js
+++ b/js/Windows.js
@@ -1,4 +1,4 @@
-var flagsCustomDecorations = (Qt.FramelessWindowHint | Qt.WindowSystemMenuHint | Qt.Window | Qt.WindowMinimizeButtonHint);
+var flagsCustomDecorations = (Qt.FramelessWindowHint | Qt.CustomizeWindowHint | Qt.WindowSystemMenuHint | Qt.Window);
 var flags = (Qt.WindowSystemMenuHint | Qt.Window | Qt.WindowMinimizeButtonHint | Qt.WindowCloseButtonHint | Qt.WindowTitleHint | Qt.WindowMaximizeButtonHint);
 
 /**