diff --git a/include/uapi/linux/tls.h b/include/uapi/linux/tls.h
index cc1d21d..d5e0682 100644
--- a/include/uapi/linux/tls.h
+++ b/include/uapi/linux/tls.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause) */
 /*
  * Copyright (c) 2016-2017, Mellanox Technologies. All rights reserved.
  *