diff --git a/drivers/virtio/virtio_ring.c b/drivers/virtio/virtio_ring.c
index 342bb03..dbe1d35 100644
--- a/drivers/virtio/virtio_ring.c
+++ b/drivers/virtio/virtio_ring.c
@@ -87,6 +87,8 @@
 	if (vq->num_free < out + in) {
 		pr_debug("Can't add buf len %i - avail = %i\n",
 			 out + in, vq->num_free);
+		/* We notify *even if* VRING_USED_F_NO_NOTIFY is set here. */
+		vq->notify(&vq->vq);
 		END_USE(vq);
 		return -ENOSPC;
 	}