diff --git a/src/mux_quic.c b/src/mux_quic.c
index c4bd1bfd5..f7c38c746 100644
--- a/src/mux_quic.c
+++ b/src/mux_quic.c
@@ -40,7 +40,7 @@ struct qcs *qcs_new(struct qcc *qcc, uint64_t id, enum qcs_type type)
 	if (!qcs)
 		goto out;
 
-	fprintf(stderr, "%s: stream ID %llu\n", __func__, qcs->by_id.key);
+	fprintf(stderr, "%s: stream ID %lu\n", __func__, id);
 
 	qcs->qcc = qcc;
 	qcs->cs = NULL;