diff --git a/sys/netgraph/ng_lmi.c b/sys/netgraph/ng_lmi.c
index ba579097a76..9dcfa38f041 100644
--- a/sys/netgraph/ng_lmi.c
+++ b/sys/netgraph/ng_lmi.c
@@ -333,6 +333,7 @@ nglmi_inquire(sc_p sc, int full)
 		log(LOG_ERR, "nglmi: unable to start up LMI processing\n");
 		return;
 	}
+	m->m_pkthdr.rcvif = NULL;
 	/* Allocate a meta struct (and leave some slop for options to be
 	 * added by other modules). */
 	/* MALLOC(meta, meta_p, sizeof( struct ng_meta) + META_PAD,
diff --git a/sys/netgraph/ng_tty.c b/sys/netgraph/ng_tty.c
index bacbb72995d..2d3a1c4a025 100644
--- a/sys/netgraph/ng_tty.c
+++ b/sys/netgraph/ng_tty.c
@@ -383,8 +383,8 @@ ngt_input(int c, struct tty *tp)
 				    "%s: can't get mbuf\n", node->name);
 			ERROUT(ENOBUFS);
 		}
-		m->m_len = 0;
-		m->m_pkthdr.len = 0;
+		m->m_len = m->m_pkthdr.len = 0;
+		m->m_pkthdr.rcvif = NULL;
 		sc->m = m;
 	}
 
diff --git a/sys/netgraph/ng_vjc.c b/sys/netgraph/ng_vjc.c
index cae3d155b5e..874a5bfade4 100644
--- a/sys/netgraph/ng_vjc.c
+++ b/sys/netgraph/ng_vjc.c
@@ -338,6 +338,7 @@ ng_vjc_rcvdata(hook_p hook, struct mbuf *m, meta_p meta)
 			return (ENOBUFS);
 		}
 		hm->m_len = 0;
+		hm->m_pkthdr.rcvif = NULL;
 		if (hlen > MHLEN) {		/* unlikely, but can happen */
 			MCLGET(hm, M_DONTWAIT);
 			if ((hm->m_flags & M_EXT) == 0) {