diff --git a/lib/ace/mode/coffee_highlight_rules.js b/lib/ace/mode/coffee_highlight_rules.js
index a0aa173e..a249479e 100644
--- a/lib/ace/mode/coffee_highlight_rules.js
+++ b/lib/ace/mode/coffee_highlight_rules.js
@@ -54,7 +54,7 @@ define(function(require, exports, module) {
         var keywords = lang.arrayToMap((
             "this|throw|then|try|typeof|super|switch|return|break|by)|continue|" +
             "catch|class|in|instanceof|is|isnt|if|else|extends|for|forown|" +
-            "finally|function|while|when|new|not|delete|debugger|do|loop|of|off|" +
+            "finally|function|while|when|new|no|not|delete|debugger|do|loop|of|off|" +
             "or|on|unless|until|and|yes").split("|")
         );