diff --git a/sys/netinet/ip_output.c b/sys/netinet/ip_output.c
index 23a5629eba4..61c8432a0ed 100644
--- a/sys/netinet/ip_output.c
+++ b/sys/netinet/ip_output.c
@@ -931,6 +931,7 @@ ip_insertoptions(m, opt, phlen)
 		MGETHDR(n, M_DONTWAIT, MT_HEADER);
 		if (n == 0)
 			return (m);
+		n->m_pkthdr.rcvif = (struct ifnet *)0;
 		n->m_pkthdr.len = m->m_pkthdr.len + optlen;
 		m->m_len -= sizeof(struct ip);
 		m->m_data += sizeof(struct ip);