diff --git a/lib/ace/mode/haml_highlight_rules.js b/lib/ace/mode/haml_highlight_rules.js
index 31429028..7d71b67c 100644
--- a/lib/ace/mode/haml_highlight_rules.js
+++ b/lib/ace/mode/haml_highlight_rules.js
@@ -18,6 +18,10 @@ var HamlHighlightRules = function() {
             "token" : "punctuation.section.comment",
             "regex" : /^\s*\/.*/
         },
+        {
+            "token" : "punctuation.section.comment",
+            "regex" : /^\s*#.*/
+        },
         {
             "token": "string.quoted.double",
             "regex": "==.+?=="