diff --git a/sys/netinet6/ip6_mroute.c b/sys/netinet6/ip6_mroute.c
index 05324dfb94bf..bbc021277fae 100644
--- a/sys/netinet6/ip6_mroute.c
+++ b/sys/netinet6/ip6_mroute.c
@@ -1793,7 +1793,6 @@ pim6_input(struct mbuf *m, int off, int proto, void *arg __unused)
 		struct mbuf *mcp;
 		struct ip6_hdr *eip6;
 		u_int32_t *reghdr;
-		int rc;
 #ifdef MRT6DEBUG
 		char ip6bufs[INET6_ADDRSTRLEN], ip6bufd[INET6_ADDRSTRLEN];
 #endif
@@ -1871,7 +1870,7 @@ pim6_input(struct mbuf *m, int off, int proto, void *arg __unused)
 		    ip6_sprintf(ip6bufs, &eip6->ip6_src),
 		    ip6_sprintf(ip6bufd, &eip6->ip6_dst), reg_mif_num);
 
-		rc = if_simloop(mif6table[reg_mif_num].m6_ifp, m,
+		if_simloop(mif6table[reg_mif_num].m6_ifp, m,
 				dst.sin6_family, 0);
 
 		/* prepare the register head to send to the mrouting daemon */