diff --git a/src/xprt_quic.c b/src/xprt_quic.c
index bff17805c..b71e42722 100644
--- a/src/xprt_quic.c
+++ b/src/xprt_quic.c
@@ -2448,7 +2448,8 @@ static int qc_parse_pkt_frms(struct quic_rx_packet *pkt, struct ssl_sock_ctx *ct
 		case QUIC_FT_CONNECTION_CLOSE:
 		case QUIC_FT_CONNECTION_CLOSE_APP:
 			/* warn the mux to close the connection */
-			qc->qcc->flags |= QC_CF_CC_RECV;
+			if (qc->mux_state == QC_MUX_READY)
+				qc->qcc->flags |= QC_CF_CC_RECV;
 			tasklet_wakeup(qc->qcc->wait_event.tasklet);
 			break;
 		case QUIC_FT_HANDSHAKE_DONE: