diff --git a/channels/chan_sip.c b/channels/chan_sip.c
index 004aaaabec..cc8fafed81 100644
--- a/channels/chan_sip.c
+++ b/channels/chan_sip.c
@@ -12698,7 +12698,11 @@ static int handle_response_register(struct sip_pvt *p, int resp, char *rest, str
 		break;
 	case 408:	/* Request timeout */
 		/* Got a timeout response, so reset the counter of failed responses */
-		r->regattempts = 0;
+		if (r) {
+			r->regattempts = 0;
+		} else {
+			ast_log(LOG_WARNING, "Got a 408 response to our REGISTER on call %s after we had destroyed the registry object\n", p->callid);
+		}
 		break;
 	case 479:	/* SER: Not able to process the URI - address is wrong in register*/
 		ast_log(LOG_WARNING, "Got error 479 on register to %s@%s, giving up (check config)\n", p->registry->username,p->registry->hostname);