diff --git a/lib/ace/mode/lua_highlight_rules.js b/lib/ace/mode/lua_highlight_rules.js
index 5eb969d3..faa37bc2 100644
--- a/lib/ace/mode/lua_highlight_rules.js
+++ b/lib/ace/mode/lua_highlight_rules.js
@@ -83,7 +83,7 @@ var LuaHighlightRules = function() {
         "constant.library": stdLibaries,
         "constant.language": builtinConstants,
         "invalid.illegal": futureReserved,
-        "variable.language": "this"
+        "variable.language": "self"
     }, "identifier");
 
     var decimalInteger = "(?:(?:[1-9]\\d*)|(?:0))";