diff --git a/nbd/server.c b/nbd/server.c
index 848836d414..3d8d0d81df 100644
--- a/nbd/server.c
+++ b/nbd/server.c
@@ -2758,6 +2758,7 @@ void nbd_client_new(QIOChannelSocket *sioc,
     }
     client->tlsauthz = g_strdup(tlsauthz);
     client->sioc = sioc;
+    qio_channel_set_delay(QIO_CHANNEL(sioc), false);
     object_ref(OBJECT(client->sioc));
     client->ioc = QIO_CHANNEL(sioc);
     object_ref(OBJECT(client->ioc));