diff --git a/lib/ace/mode/xml_highlight_rules.js b/lib/ace/mode/xml_highlight_rules.js
index 752844c7..42938b90 100644
--- a/lib/ace/mode/xml_highlight_rules.js
+++ b/lib/ace/mode/xml_highlight_rules.js
@@ -70,7 +70,7 @@ var XmlHighlightRules = 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",