diff --git a/sys/compat/linuxkpi/common/include/linux/utsname.h b/sys/compat/linuxkpi/common/include/linux/utsname.h
index e6c52f8a502..3239801ca17 100644
--- a/sys/compat/linuxkpi/common/include/linux/utsname.h
+++ b/sys/compat/linuxkpi/common/include/linux/utsname.h
@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-2-Clause
+ *
  * Copyright (c) 2023 Bjoern A. Zeeb
  *
  * Redistribution and use in source and binary forms, with or without