diff --git a/ckeditor.libraries.yml b/ckeditor.libraries.yml
index ba87cf41c2f0168749df85adf70e96cb18522146..17b3cb4c9c82279464b5abef41f2fa2eb434a6ec 100644
--- a/ckeditor.libraries.yml
+++ b/ckeditor.libraries.yml
@@ -54,7 +54,7 @@ drupal.ckeditor.admin:
   css:
     theme:
       css/ckeditor.admin.css: {}
-      /core/assets/vendor/ckeditor/skins/moono-lisa/editor.css: {}
+      vendor/skins/moono-lisa/editor.css: {}
   dependencies:
     - core/jquery
     - core/drupal