diff --git a/fs/crypto/hooks.c b/fs/crypto/hooks.c
index 2dc2254..bd525f7 100644
--- a/fs/crypto/hooks.c
+++ b/fs/crypto/hooks.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * fs/crypto/hooks.c
  *