diff --git a/demo/js/widget/downlist/demo.downlist.js b/demo/js/widget/downlist/demo.downlist.js
index ec3fb380ff..f5cd165f7b 100644
--- a/demo/js/widget/downlist/demo.downlist.js
+++ b/demo/js/widget/downlist/demo.downlist.js
@@ -22,6 +22,7 @@ Demo.Downlist = BI.inherit(BI.Widget, {
 
     render: function () {
         var self = this;
+        // test
         return {
             type: "bi.horizontal_adapt",
             items: [{
diff --git a/dist/demo.js b/dist/demo.js
index 7daeeb6bed..d037643d4e 100644
--- a/dist/demo.js
+++ b/dist/demo.js
@@ -8877,6 +8877,7 @@ BI.shortcut("demo.date_time", Demo.CustomDateTime);Demo.Downlist = BI.inherit(BI
 
     render: function () {
         var self = this;
+        // test
         return {
             type: "bi.horizontal_adapt",
             items: [{