diff --git a/sys/net/if_fddisubr.c b/sys/net/if_fddisubr.c
index 5afe0c4525ea..5d3cd4272dd0 100644
--- a/sys/net/if_fddisubr.c
+++ b/sys/net/if_fddisubr.c
@@ -1,6 +1,6 @@
+/*-
  * SPDX-License-Identifier: BSD-4-Clause
  *
-/*-
  * Copyright (c) 1995, 1996
  *	Matt Thomas <matt@3am-software.com>.  All rights reserved.
  * Copyright (c) 1982, 1989, 1993