diff --git a/misc/arpd.c b/misc/arpd.c
index e77ef539..a42603f6 100644
--- a/misc/arpd.c
+++ b/misc/arpd.c
@@ -437,10 +437,10 @@ static void get_kern_msg(void)
 	struct iovec iov;
 	char   buf[8192];
 	struct msghdr msg = {
-		(void *)&nladdr, sizeof(nladdr),
-		&iov,	1,
-		NULL,	0,
-		0
+		.msg_name = &nladdr,
+		.msg_namelen = sizeof(nladdr),
+		.msg_iov = &iov,
+		.msg_iovlen = 1,
 	};
 
 	iov.iov_base = buf;