diff --git a/src/base/single/editor/editor.code.js b/src/base/single/editor/editor.code.js
index 3a8292d0c..3acb4b164 100644
--- a/src/base/single/editor/editor.code.js
+++ b/src/base/single/editor/editor.code.js
@@ -85,7 +85,11 @@ BI.CodeEditor = BI.inherit(BI.Single, {
         var from = this.editor.getCursor();
         this.editor.replaceSelection(param);
         var to = this.editor.getCursor();
-        this.editor.markText(from, to, {className: 'param', atomic: true});
+        var options = {className: 'param', atomic: true};
+        if(BI.isNotNull(param.match(/<!.*!>/))){
+            options.className = 'error-param';
+        }
+        this.editor.markText(from, to, options);
         this.editor.replaceSelection(" ");
         this.editor.focus();
     },
@@ -102,6 +106,7 @@ BI.CodeEditor = BI.inherit(BI.Single, {
             _.forEach(line.markedSpans, function (i, ms) {
                 switch (i.marker.className) {
                     case "param":
+                    case "error-param":
                         var fieldNameLength = i.to - i.from;
                         value = value.substr(0, i.from + num) + "$\{" + value.substr(i.from + num, fieldNameLength) + "\}" + value.substr(i.to + num, value.length);
                         num += 3;