diff --git a/README.md b/README.md
index 411088a..3a8ec34 100644
--- a/README.md
+++ b/README.md
@@ -71,9 +71,13 @@ If you already have a pypi repo, use `genlocal` first to generate a local db:
 Verify command could be used if you believe that something is wrong. It would remove packages NOT in local db, update all local packages, and delete unreferenced files in `packages` folder:
 
 ```shell
-./shadowmire.py verify
+./shadowmire.py verify --sync-packages
 ```
 
+Verify command accepts same arguments as sync.
+
+Also, if you need debugging, you could use `do-update` and `do-remove` command to operate on a single package.
+
 ## Acknowledgements
 
 This project uses some code from PyPI's official mirroring tools, [bandersnatch](https://github.com/pypa/bandersnatch).