diff --git a/src/dragonball/src/dbs_virtio_devices/src/fs/device.rs b/src/dragonball/src/dbs_virtio_devices/src/fs/device.rs
index 2f9c2c28372d..29f85d22cd11 100644
--- a/src/dragonball/src/dbs_virtio_devices/src/fs/device.rs
+++ b/src/dragonball/src/dbs_virtio_devices/src/fs/device.rs
@@ -2,6 +2,8 @@
 //
 // SPDX-License-Identifier: Apache-2.0 AND BSD-3-Clause
 
+// TODO: rafsv6 virtiofs backend implementation
+
 use std::any::Any;
 use std::collections::HashMap;
 use std::ffi::CString;