diff --git a/src/drivers/net/virtio-net.c b/src/drivers/net/virtio-net.c
index 0c4541924..cb55ea041 100644
--- a/src/drivers/net/virtio-net.c
+++ b/src/drivers/net/virtio-net.c
@@ -623,6 +623,7 @@ static int virtnet_probe_modern ( struct pci_device *pci, int *found_dev ) {
 			DBGC ( virtnet, "VIRTIO-NET %p mtu=%d\n", virtnet,
 			       mtu );
 			netdev->max_pkt_len = ( mtu + ETH_HLEN );
+			netdev->mtu = mtu;
 		}
 	}