diff --git a/theme/components/panel/balloonrotator.css b/theme/components/panel/balloonrotator.css
index 6ded7cd5..e32e0a7a 100644
--- a/theme/components/panel/balloonrotator.css
+++ b/theme/components/panel/balloonrotator.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
  */
 
 .ck .ck-balloon-rotator__navigation {
diff --git a/theme/components/panel/fakepanel.css b/theme/components/panel/fakepanel.css
index 026ead7f..307e0e03 100644
--- a/theme/components/panel/fakepanel.css
+++ b/theme/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
  */
 
 .ck .ck-fake-panel {