diff --git a/app/assets/javascripts/admin/plugins/codemirror.js b/app/assets/javascripts/admin/plugins/codemirror.js
index bfb64ac9709e1e799946a5ef0a5d4e84ce78249b..553e9afd748b24c9bf3dee73f9bd49c39d0b5d11 100644
--- a/app/assets/javascripts/admin/plugins/codemirror.js
+++ b/app/assets/javascripts/admin/plugins/codemirror.js
@@ -22,8 +22,8 @@ window.codemirrorManager = {
 
     createInstance: function (textarea) {
         'use strict';
-        var mode = textarea.getAttribute("data-codemirror-mode"),
-            indentationLevel = window.parseInt(textarea.getAttribute("data-codemirror-indentation"));
+        var mode = textarea.getAttribute('data-codemirror-mode'),
+            indentationLevel = window.parseInt(textarea.getAttribute('data-codemirror-indentation'));
 
         if (isNaN(indentationLevel)) {
             indentationLevel = 2;