diff --git a/core/modules/ckeditor/js/plugins/drupallink/plugin.js b/core/modules/ckeditor/js/plugins/drupallink/plugin.js
index ff64f880ef82c79011f5e7c535676dcac27d796e..9bd4dce985067f717d66d963f5a4cbcd8cadd811 100644
--- a/core/modules/ckeditor/js/plugins/drupallink/plugin.js
+++ b/core/modules/ckeditor/js/plugins/drupallink/plugin.js
@@ -13,7 +13,7 @@
     var parsedAttributes = {};
 
     var domElement = element.$;
-    var attribute = null;
+    var attribute;
     var attributeName;
     for (var attrIndex = 0; attrIndex < domElement.attributes.length; attrIndex++) {
       attribute = domElement.attributes.item(attrIndex);