diff --git a/drivers/virtio/Makefile b/drivers/virtio/Makefile
index 17d264a..2e48785 100644
--- a/drivers/virtio/Makefile
+++ b/drivers/virtio/Makefile
@@ -4,3 +4,4 @@
 # Copyright (C) 2018, Bin Meng <bmeng.cn@gmail.com>
 
 obj-y += virtio-uclass.o virtio_ring.o
+obj-$(CONFIG_VIRTIO_MMIO) += virtio_mmio.o