diff --git a/js/plugins/quote/dialogs/quote.js b/js/plugins/quote/dialogs/quote.js
index 3eddc84..21a9aea 100644
--- a/js/plugins/quote/dialogs/quote.js
+++ b/js/plugins/quote/dialogs/quote.js
@@ -123,6 +123,7 @@ CKEDITOR.dialog.add('quoteDialog', function (editor) {
       // Create a new <div> element if it does not exist.
       if (!element || element.getName() !== 'blockquote') {
         element = editor.document.createElement('blockquote');
+        element.setAttribute('class', 'advanced-quotes');
         // Flag the insertion mode for later use.
         this.insertMode = true;
       }