diff --git a/lib/ace/mode/markdown_highlight_rules.js b/lib/ace/mode/markdown_highlight_rules.js
index 8961ff65..dc332fa6 100644
--- a/lib/ace/mode/markdown_highlight_rules.js
+++ b/lib/ace/mode/markdown_highlight_rules.js
@@ -73,7 +73,7 @@ var MarkdownHighlightRules = function() {
             token: "markup.heading.1",
             regex: "^=+(?=\\s*$)"
         }, { // h2
-            token: "markup.heading.1",
+            token: "markup.heading.2",
             regex: "^\\-+(?=\\s*$)"
         }, { // header
             token : function(value) {