diff --git a/sys/netinet6/sctp6_usrreq.c b/sys/netinet6/sctp6_usrreq.c
index 4e5a64710d9..c88ca96f5c2 100644
--- a/sys/netinet6/sctp6_usrreq.c
+++ b/sys/netinet6/sctp6_usrreq.c
@@ -879,7 +879,7 @@ sctp6_connect(struct socket *so, struct sockaddr *addr, struct thread *p)
 	if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
 		stcb = LIST_FIRST(&inp->sctp_asoc_list);
 		if (stcb) {
-			SCTP_TCB_UNLOCK(stcb);
+			SCTP_TCB_LOCK(stcb);
 		}
 		SCTP_INP_RUNLOCK(inp);
 	} else {