diff --git a/js/maxlength.js b/js/maxlength.js
index 6916ad3..b10a712 100644
--- a/js/maxlength.js
+++ b/js/maxlength.js
@@ -13,7 +13,7 @@
             ml[editor]();
           }
         });
-      } else if (Drupal.settings.ckeditor != undefined) {
+      } else if (Drupal.settings.ckeditor != undefined && typeof(CKEDITOR) !== 'undefined') {
         ml.ckeditor();
       }