diff --git a/sys/alpha/osf1/osf1_ioctl.c b/sys/alpha/osf1/osf1_ioctl.c
index e96d565ee7b4..5d8916c8e3d5 100644
--- a/sys/alpha/osf1/osf1_ioctl.c
+++ b/sys/alpha/osf1/osf1_ioctl.c
@@ -202,7 +202,7 @@ osf1_ioctl_i(p, uap, cmd, dir, len)
 		 * structure, as DU interface names are all different.
 		 */
 		for (ifn = 0; ifn < if_index; ifn++) {
-			ifp = ifnet_addrs[ifn]->ifa_ifp;    /* pointer to interface */
+			ifp = ifnet_byindex(ifn);
 			/* Only look at ether interfaces, exclude alteon nics
 			 * because osf/1 doesn't know about most of them.
 			 */