diff --git a/include/asm-generic/unaligned.h b/include/asm-generic/unaligned.h
index 1ac0972..374c940 100644
--- a/include/asm-generic/unaligned.h
+++ b/include/asm-generic/unaligned.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_GENERIC_UNALIGNED_H
 #define __ASM_GENERIC_UNALIGNED_H