diff --git a/src/h3.c b/src/h3.c
index b5699bfbf..7fbd483c6 100644
--- a/src/h3.c
+++ b/src/h3.c
@@ -179,11 +179,11 @@ static int h3_headers_to_htx(struct qcs *qcs, struct buffer *buf, uint64_t len,
 	cs = cs_new();
 	if (!cs)
 		return 1;
-	cs_attach_endp(&qcs->qcc->conn->obj_type, qcs);
+	cs_attach_endp(cs, &qcs->qcc->conn->obj_type, qcs);
 
 	cs->flags |= CS_FL_NOT_FIRST;
 	cs->ctx = qcs;
-	stream_create_from_cs(cs, &htx_buf);
+	stream_new(qcs->qcc->conn->owner, cs, &htx_buf);
 
 	/* buffer is transferred to conn_stream and set to NULL
 	 * except on stream creation error.
diff --git a/src/hq_interop.c b/src/hq_interop.c
index c9d8c9a3d..0e5561d8a 100644
--- a/src/hq_interop.c
+++ b/src/hq_interop.c
@@ -77,7 +77,7 @@ static int hq_interop_decode_qcs(struct qcs *qcs, int fin, void *ctx)
 		return -1;
 	cs_attach_endp(cs, &qcs->qcc->conn->obj_type, qcs);
 	cs->ctx = qcs;
-	stream_create_from_cs(cs, &htx_buf);
+	stream_new(qcs->qcc->conn->owner, cs, &htx_buf);
 
 	b_del(rxbuf, b_data(rxbuf));
 	b_free(&htx_buf);