diff --git a/lib/ace/mode/javascript_highlight_rules.js b/lib/ace/mode/javascript_highlight_rules.js
index 63348303..ad3efba8 100644
--- a/lib/ace/mode/javascript_highlight_rules.js
+++ b/lib/ace/mode/javascript_highlight_rules.js
@@ -380,7 +380,7 @@ var JavaScriptHighlightRules = function() {
         "function_arguments": [
             {
                 token: "variable.parameter",
-                regex: identifierRe,
+                regex: identifierRe
             }, {
                 token: "punctuation.operator",
                 regex: "[, ]+",