diff --git a/scripts/h5peditor-html.js b/scripts/h5peditor-html.js
index 8bef95fba2c2d1f9b631dba9c80792aa215f3473..30226efabade6160fd031e38ea548fca0b92fafc 100644
--- a/scripts/h5peditor-html.js
+++ b/scripts/h5peditor-html.js
@@ -32,7 +32,7 @@ ns.Html.prototype.inTags = function (value) {
  * @return {boolean}
  */
 ns.Html.prototype.inButtons = function (button) {
-  return (H5PIntegration.wysiwygButtons !== undefined && H5PIntegration.wysiwygButtons.indexOf(button) !== -1);
+  return (H5PIntegration.editor.wysiwygButtons !== undefined && H5PIntegration.editor.wysiwygButtons.indexOf(button) !== -1);
 };
 
 ns.Html.prototype.createToolbar = function () {