diff --git a/src/openrc-shutdown/broadcast.c b/src/openrc-shutdown/broadcast.c
index 402a9fb9..05672ee0 100644
--- a/src/openrc-shutdown/broadcast.c
+++ b/src/openrc-shutdown/broadcast.c
@@ -44,11 +44,7 @@ static sigjmp_buf jbuf;
  *	Alarm handler
  */
 /*ARGSUSED*/
-# ifdef __GNUC__
-static void handler(int arg __attribute__((unused)))
-# else
-static void handler(int arg)
-# endif
+_noreturn static void handler(int arg _unused)
 {
 	siglongjmp(jbuf, 1);
 }