diff --git a/lib/ace/tokenizer.js b/lib/ace/tokenizer.js
index 1fecc294..cfee8199 100644
--- a/lib/ace/tokenizer.js
+++ b/lib/ace/tokenizer.js
@@ -98,7 +98,7 @@ var Tokenizer = function(rules) {
             var type = "text";
             var value = [match[0]];
 
-            for ( var i = 0; i < match.length-1; i++) {
+            for ( var i = 0; i < match.length-2; i++) {
                 if (match[i + 1] !== undefined) {
                     var rule = state[mapping[i].rule];