diff --git a/theme/ckeditor5-ui/components/panel/fakepanel.css b/theme/ckeditor5-ui/components/panel/fakepanel.css
index 53374d5..c35328d 100644
--- a/theme/ckeditor5-ui/components/panel/fakepanel.css
+++ b/theme/ckeditor5-ui/components/panel/fakepanel.css
@@ -1,6 +1,6 @@
 /*
  * Copyright (c) 2003-2019, CKSource - Frederico Knabben. All rights reserved.
- * For licensing, see LICENSE.md.
+ * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license
  */
 
 @import "../../../mixins/_shadow.css";