diff --git a/wwwroot/top.ui b/wwwroot/top.ui
index 2640bdd..bab891d 100644
--- a/wwwroot/top.ui
+++ b/wwwroot/top.ui
@@ -23,7 +23,7 @@
 			"widgettype":"Svg",
 			"options":{
 				"css": "clickable",
-				"cwidth":1,5,
+				"cwidth":1.5,
 				"cheight":"1.5,
 				"tip": "show all the closed window",
 				"url":"{{entire_url('/bricks/imgs/app-dock.svg')}}"