diff --git a/skywalking-webui/src/main/webapp/bower_components/skywalking/js/tracelog.js b/skywalking-webui/src/main/webapp/bower_components/skywalking/js/tracelog.js
index d4c7b4e58..f5a076727 100644
--- a/skywalking-webui/src/main/webapp/bower_components/skywalking/js/tracelog.js
+++ b/skywalking-webui/src/main/webapp/bower_components/skywalking/js/tracelog.js
@@ -21,7 +21,7 @@ function changeData(data) {
     var colId;
     for (var i = 0; i < data.nodes.length; i++) {
         tmpNode = data.nodes[i];
-        colId = JSON.stringify(tmpNode.colId);
+        colId = tmpNode.colId;
         tmpNode.modalId = colId.replace(/\./g,'');
         if (tmpNode.colId == "0") {
             tmpNode.isEntryNode = true;