diff --git a/lib/ace/mode/sql_highlight_rules.js b/lib/ace/mode/sql_highlight_rules.js
index e16ac9ab..df04786c 100644
--- a/lib/ace/mode/sql_highlight_rules.js
+++ b/lib/ace/mode/sql_highlight_rules.js
@@ -59,6 +59,10 @@ var SqlHighlightRules = function() {
         "start" : [ {
             token : "comment",
             regex : "--.*$"
+        },  {
+            token : "comment",
+            start : "/\\*",
+            end : "\\*/"
         }, {
             token : "string",           // " string
             regex : '".*?"'
@@ -85,6 +89,7 @@ var SqlHighlightRules = function() {
             regex : "\\s+"
         } ]
     };
+    this.normalizeRules();
 };
 
 oop.inherits(SqlHighlightRules, TextHighlightRules);