diff --git a/sys/dev/vge/if_vge.c b/sys/dev/vge/if_vge.c
index b5f3aaece52c..e95a364656d7 100644
--- a/sys/dev/vge/if_vge.c
+++ b/sys/dev/vge/if_vge.c
@@ -1045,7 +1045,6 @@ vge_attach(device_t dev)
 
 	ifp->if_softc = sc;
 	if_initname(ifp, device_get_name(dev), device_get_unit(dev));
-	ifp->if_mtu = ETHERMTU;
 	ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
 	ifp->if_ioctl = vge_ioctl;
 	ifp->if_capabilities = IFCAP_VLAN_MTU;
@@ -1066,6 +1065,9 @@ vge_attach(device_t dev)
 	 */
 	ether_ifattach(ifp, eaddr);
 
+	/* Tell the upper layer(s) we support long frames. */
+	ifp->if_data.ifi_hdrlen = sizeof(struct ether_vlan_header);
+
 	/* Hook interrupt last to avoid having to lock softc */
 	error = bus_setup_intr(dev, sc->vge_irq, INTR_TYPE_NET|INTR_MPSAFE,
 	    NULL, vge_intr, sc, &sc->vge_intrhand);