diff --git a/sys/net/if_spppsubr.c b/sys/net/if_spppsubr.c
index e489c58ee4e5..61d2da3bc977 100644
--- a/sys/net/if_spppsubr.c
+++ b/sys/net/if_spppsubr.c
@@ -713,6 +713,7 @@ sppp_output(struct ifnet *ifp, struct mbuf *m,
 		s = splimp();
 	}
 
+	ifq = &ifp->if_snd;
 #ifdef INET
 	if (dst->sa_family == AF_INET) {
 		/* XXX Check mbuf length here? */