diff --git a/virtio/src/vhost/user/fs.rs b/virtio/src/vhost/user/fs.rs
index f08ddd399fea540c2fd78cc140905ebfb0898218..cd0554db8ce87336394f015216362cf8c3b30027 100644
--- a/virtio/src/vhost/user/fs.rs
+++ b/virtio/src/vhost/user/fs.rs
@@ -12,8 +12,8 @@
 
 // The num of high priority queue
 const VIRIOT_FS_HIGH_PRIO_QUEUE_NUM: usize = 1;
-// The num of request queue
-const VIRTIO_FS_REQ_QUEUES_NUM: usize = 1;
+// The num of request queue, queue-1 for requests, queue-2 for notifications
+const VIRTIO_FS_REQ_QUEUES_NUM: usize = 2;
 // The size of queue for virtio fs
 const VIRTIO_FS_QUEUE_SIZE: u16 = 128;