diff --git a/includes/ckeditor.utils.js b/includes/ckeditor.utils.js
index ce22cd4..208f164 100644
--- a/includes/ckeditor.utils.js
+++ b/includes/ckeditor.utils.js
@@ -46,6 +46,10 @@ if (typeof window.CKEDITOR_BASEPATH === 'undefined') {
     {
       configLoaded  : function(ev)
       {
+        if ($('#' + textarea_id).hasClass('error')) {
+          CKEDITOR.env.cssClass += ' error';
+        }
+
         Drupal.ckeditor_ver = CKEDITOR.version.split('.')[0];
         if (Drupal.ckeditor_ver == 3) {
           ev.editor.addCss(ev.editor.config.extraCss);