diff --git a/sys/net/if_fddisubr.c b/sys/net/if_fddisubr.c
index 2230396403c7..cf0caf700cb6 100644
--- a/sys/net/if_fddisubr.c
+++ b/sys/net/if_fddisubr.c
@@ -520,8 +520,7 @@ fddi_ifattach(ifp, bpf)
 #endif
 	ifa = ifaddr_byindex(ifp->if_index);
 	if (ifa == NULL) {
-		printf("%s(): no lladdr for %s%d!\n", __FUNCTION__,
-		       ifp->if_name, ifp->if_unit);
+		if_printf(ifp, "%s() no lladdr!\n", __func__);
 		return;
 	}
 
diff --git a/sys/net/if_iso88025subr.c b/sys/net/if_iso88025subr.c
index 3593ec63b453..3548c2b6b911 100644
--- a/sys/net/if_iso88025subr.c
+++ b/sys/net/if_iso88025subr.c
@@ -117,8 +117,8 @@ iso88025_ifattach(struct ifnet *ifp, int bpf)
 
     ifa = ifaddr_byindex(ifp->if_index);
     if (ifa == 0) {
-            printf("iso88025_ifattach: no lladdr!\n");
-            return;
+        if_printf(ifp, "%s() no lladdr!\n", __func__);
+        return;
     }
 
     sdl = (struct sockaddr_dl *)ifa->ifa_addr;