diff --git a/Documentation/networking/batman-adv.rst b/Documentation/networking/batman-adv.rst
index a342b2cc3dc640..245fb6c0ab6f55 100644
--- a/Documentation/networking/batman-adv.rst
+++ b/Documentation/networking/batman-adv.rst
@@ -1,3 +1,5 @@
+.. SPDX-License-Identifier: GPL-2.0
+
 ==========
 batman-adv
 ==========