diff --git a/javascript/src/Helper/tinyMCE.js b/javascript/src/Helper/tinyMCE.js
index 48d0f1618710c85baa115ee709a5e6e7af9ba9f7..c15cff9b8d9db02d1bcf85605fe5914dd2926d50 100644
--- a/javascript/src/Helper/tinyMCE.js
+++ b/javascript/src/Helper/tinyMCE.js
@@ -27,7 +27,7 @@ QfqNS.Helper = QfqNS.Helper || {};
      * @name QfqNS.Helper.jqxEditor
      */
     var tinyMce = function () {
-        if (!tinymce) {
+        if (typeof tinymce === 'undefined') {
             return;
         }
 
@@ -68,7 +68,7 @@ QfqNS.Helper = QfqNS.Helper || {};
     };
 
     tinyMce.prepareSave = function () {
-        if (!tinymce) {
+        if (typeof tinymce === 'undefined') {
             return;
         }