diff --git a/sys/netinet/sctp_pcb.c b/sys/netinet/sctp_pcb.c
index e9d99ed69d12..aaca910bc510 100644
--- a/sys/netinet/sctp_pcb.c
+++ b/sys/netinet/sctp_pcb.c
@@ -1203,11 +1203,18 @@ sctp_findassociation_ep_addr(struct sctp_inpcb **inp_p, struct sockaddr *remote,
 	uint16_t rport;
 
 	inp = *inp_p;
-	if (remote->sa_family == AF_INET) {
+	switch (remote->sa_family) {
+#ifdef INET
+	case AF_INET:
 		rport = (((struct sockaddr_in *)remote)->sin_port);
-	} else if (remote->sa_family == AF_INET6) {
+		break;
+#endif
+#ifdef INET6
+	case AF_INET6:
 		rport = (((struct sockaddr_in6 *)remote)->sin6_port);
-	} else {
+		break;
+#endif
+	default:
 		return (NULL);
 	}
 	if (locked_tcb) {