diff --git a/sys/netinet/in.c b/sys/netinet/in.c
index e22f2775de00..07aea7195fff 100644
--- a/sys/netinet/in.c
+++ b/sys/netinet/in.c
@@ -1,4 +1,4 @@
-/*	$NetBSD: in.c,v 1.139 2011/10/19 01:52:22 dyoung Exp $	*/
+/*	$NetBSD: in.c,v 1.140 2011/10/28 22:23:54 dyoung Exp $	*/
 
 /*
  * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
@@ -91,7 +91,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: in.c,v 1.139 2011/10/19 01:52:22 dyoung Exp $");
+__KERNEL_RCSID(0, "$NetBSD: in.c,v 1.140 2011/10/28 22:23:54 dyoung Exp $");
 
 #include "opt_inet.h"
 #include "opt_inet_conf.h"
@@ -352,12 +352,10 @@ in_control(struct socket *so, u_long cmd, void *data, struct ifnet *ifp,
 		if ((cmd == SIOCDIFADDR || cmd == SIOCGIFALIAS) && ia == NULL)
 			return (EADDRNOTAVAIL);
 
-#if 1 /*def COMPAT_43*/
 		if (cmd == SIOCDIFADDR &&
 		    ifra->ifra_addr.sin_family == AF_UNSPEC) {
 			ifra->ifra_addr.sin_family = AF_INET;
 		}
-#endif
 		/* FALLTHROUGH */
 	case SIOCSIFADDR:
 	case SIOCSIFDSTADDR: