diff --git a/sys/kern/kern_rangelock.c b/sys/kern/kern_rangelock.c
index 5ec443d3199..89b52d2550f 100644
--- a/sys/kern/kern_rangelock.c
+++ b/sys/kern/kern_rangelock.c
@@ -2,7 +2,11 @@
  * SPDX-License-Identifier: BSD-2-Clause
  *
  * Copyright (c) 2009 Konstantin Belousov <kib@FreeBSD.org>
- * All rights reserved.
+ * Copyright (c) 2023 The FreeBSD Foundation
+ *
+ * Portions of this software were developed by
+ * Konstantin Belousov <kib@FreeBSD.org> under sponsorship from
+ * the FreeBSD Foundation.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions