diff --git a/spa/plugins/bluez5/sco-source.c b/spa/plugins/bluez5/sco-source.c
index 5d95c9dbd..aab68fea2 100644
--- a/spa/plugins/bluez5/sco-source.c
+++ b/spa/plugins/bluez5/sco-source.c
@@ -337,7 +337,7 @@ static void sco_on_ready_read(struct spa_source *source)
 	datas = port->current_buffer->buf->datas;
 
 	/* read */
-	size_read = read_data(this, (uint8_t *)datas[0].data + port->ready_offset, datas[0].maxsize);
+	size_read = read_data(this, (uint8_t *)datas[0].data + port->ready_offset, this->read_mtu);
 	if (size_read < 0) {
 		spa_log_error(this->log, "failed to read data");
 		goto stop;
@@ -1065,6 +1065,15 @@ impl_init(const struct spa_handle_factory *factory,
 			&this->transport_listener, &transport_events, this);
 	this->sock_fd = -1;
 
+	/* TODO: For now, we always use an MTU size of 48 bytes like bluezalsa
+	 * because the MTU size returned by the kernel is incorrect (or our
+	 * interpretation of it) */
+#if 0
+	this->read_mtu = this->transport->read_mtu;
+#else
+	this->read_mtu = 48;
+#endif
+
 	return 0;
 }