diff --git a/examples/index.html b/examples/index.html
index 976b87b..dc04853 100644
--- a/examples/index.html
+++ b/examples/index.html
@@ -7,7 +7,6 @@
   <script src="../node_modules/sql-formatter/dist/sql-formatter.min.js" type="text/javascript"></script>
   <script src="PrestoSqlMode.js" type="text/javascript"></script>
   <script src="../dist/ace-ts-editor.js" type="text/javascript"></script>
-  <script src="../node_modules/ace-builds/src-min-noconflict/ext-language_tools.js"></script>
 </head>
 
 <body>
