diff --git a/rhodecode/templates/admin/gists/new.html b/rhodecode/templates/admin/gists/new.html
--- a/rhodecode/templates/admin/gists/new.html
+++ b/rhodecode/templates/admin/gists/new.html
@@ -9,6 +9,7 @@
 <script type="text/javascript" src="${h.url('/js/codemirror.js')}"></script>
 <script type="text/javascript" src="${h.url('/js/codemirror_loadmode.js')}"></script>
 <script type="text/javascript" src="${h.url('/js/mode/meta.js')}"></script>
+<script type="text/javascript" src="${h.url('/js/mode/meta_ext.js')}"></script>
 </%def>
 <%def name="css_extra()">
 <link rel="stylesheet" type="text/css" href="${h.url('/css/codemirror.css')}"/>