diff --git a/channels/chan_sip.c b/channels/chan_sip.c
index 3576e966c4..a5fdc49804 100755
--- a/channels/chan_sip.c
+++ b/channels/chan_sip.c
@@ -7918,6 +7918,8 @@ static int handle_request(struct sip_pvt *p, struct sip_request *req, struct soc
 			receive_message(p, req);
 		}
 		transmit_response(p, "200 OK", req);
+		if (!p->lastinvite)
+			ast_set_flag(p, SIP_NEEDDESTROY);
 	} else if (!strcasecmp(cmd, "SUBSCRIBE")) {
 		if (!ignore) {
 			/* Use this as the basis */