diff --git a/var/httpd/htdocs/js/Core.UI.RichTextEditor.js b/var/httpd/htdocs/js/Core.UI.RichTextEditor.js
index f7b47d47a74..d2c6220ecdc 100644
--- a/var/httpd/htdocs/js/Core.UI.RichTextEditor.js
+++ b/var/httpd/htdocs/js/Core.UI.RichTextEditor.js
@@ -422,6 +422,14 @@ Core.UI.RichTextEditor = (function (TargetNS) {
             };
             /* eslint-enable no-unused-vars */
 
+            // Needed for clientside validation of RTE
+            CKEDITOR.instances[EditorID].on('blur', function () {
+                CKEDITOR.instances[EditorID].updateElement();
+                if (!$EditorArea.hasClass('Error')) {
+                    Core.Form.Validate.ValidateElement($EditorArea);
+                }
+            });
+
             // needed for client-side validation
             CKEDITOR.instances[EditorID].on('focus', function () {