diff --git a/sys/dev/virtio/network/if_vtnet.c b/sys/dev/virtio/network/if_vtnet.c
--- a/sys/dev/virtio/network/if_vtnet.c
+++ b/sys/dev/virtio/network/if_vtnet.c
@@ -1532,8 +1532,8 @@
 			m_freem(m_head);
 			return (NULL);
 		}
-
 		m->m_len = size;
+		m_adj(m, ETHER_ALIGN);
 		if (m_head != NULL) {
 			m_tail->m_next = m;
 			m_tail = m;