diff --git a/js/yoast_seo.js b/js/yoast_seo.js
index f1b020f..a3d5afc 100644
--- a/js/yoast_seo.js
+++ b/js/yoast_seo.js
@@ -84,7 +84,7 @@
               }
             });
 
-            if (typeof CKEDITOR !== "undefined") {
+            if (typeof CKEDITOR != "undefined") {
               CKEDITOR.on('instanceReady', function( ev ) {
                 var editor = ev.editor;
                 for (var text_field in YoastSEO.analyzerArgs.fields.text) {