diff --git a/lib/ace/mode/html_highlight_rules.js b/lib/ace/mode/html_highlight_rules.js
index 1c445fe3..24165fc2 100644
--- a/lib/ace/mode/html_highlight_rules.js
+++ b/lib/ace/mode/html_highlight_rules.js
@@ -81,7 +81,7 @@ var HtmlHighlightRules = function() {
             token : "text",
             regex : "\\s+"
         }, {
-            token : "entity.reference",
+            token : "constant.character.entity",
             regex : "(?:&#[0-9]+;)|(?:&#x[0-9a-fA-F]+;)|(?:&[a-zA-Z0-9_:\\.-]+;)"
         }, {
             token : "text",