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
@@ -2059,8 +2059,16 @@
 		}
 	}
 
-	m->m_pkthdr.flowid = rxq->vtnrx_id;
-	M_HASHTYPE_SET(m, M_HASHTYPE_OPAQUE);
+	if (sc->vtnet_act_vq_pairs == 1) {
+		/*
+		 * When RSS is not needed (one active rx queue), let the upper
+		 * layer know and react.
+		 */
+		M_HASHTYPE_CLEAR(m);
+	} else {
+		m->m_pkthdr.flowid = rxq->vtnrx_id;
+		M_HASHTYPE_SET(m, M_HASHTYPE_OPAQUE);
+	}
 
 	if (hdr->flags &
 	    (VIRTIO_NET_HDR_F_NEEDS_CSUM | VIRTIO_NET_HDR_F_DATA_VALID)) {