diff --git a/include/haproxy/mux_quic.h b/include/haproxy/mux_quic.h
index a2a1ecfb8..b39fdfd9c 100644
--- a/include/haproxy/mux_quic.h
+++ b/include/haproxy/mux_quic.h
@@ -51,6 +51,9 @@ static inline int qmux_stream_rx_bufsz(void)
 	return global.tune.bufsize - NCB_RESERVED_SZ;
 }
 
+/* Number of buffers usable on Rx per QCS instance. */
+#define QMUX_STREAM_RX_BUF_FACTOR    90
+
 /* Bit shift to get the stream sub ID for internal use which is obtained
  * shifting the stream IDs by this value, knowing that the
  * QCS_ID_TYPE_SHIFT less significant bits identify the stream ID
diff --git a/src/quic_tp.c b/src/quic_tp.c
index 320e98783..e82e2e8bb 100644
--- a/src/quic_tp.c
+++ b/src/quic_tp.c
@@ -65,7 +65,7 @@ void quic_transport_params_init(struct quic_transport_params *p, int server)
 	p->initial_max_streams_bidi            = max_streams_bidi;
 	p->initial_max_streams_uni             = max_streams_uni;
 	p->initial_max_stream_data_bidi_local  = stream_rx_bufsz;
-	p->initial_max_stream_data_bidi_remote = stream_rx_bufsz;
+	p->initial_max_stream_data_bidi_remote = stream_rx_bufsz * QMUX_STREAM_RX_BUF_FACTOR;
 	p->initial_max_stream_data_uni         = stream_rx_bufsz;
 	p->initial_max_data = (max_streams_bidi + max_streams_uni) * stream_rx_bufsz;