Index: channels/chan_sip.c
===================================================================
--- channels/chan_sip.c	(revision 192278)
+++ channels/chan_sip.c	(working copy)
@@ -15278,6 +15278,8 @@
 	
 	if ((peer = find_peer(a->argv[2], NULL, load_realtime, FINDPEERS, TRUE))) {
 		if (peer->expire > 0) {
+			AST_SCHED_DEL_UNREF(sched, peer->expire,
+				unref_peer(peer, "remove register expire ref"));
 			expire_register(ref_peer(peer, "ref for expire_register"));
 			ast_cli(a->fd, "Unregistered peer \'%s\'\n\n", a->argv[2]);
 		} else {