diff --git a/stacks/duplicati/README.md b/stacks/duplicati/README.md
index 2d00c7e..a6cb93c 100644
--- a/stacks/duplicati/README.md
+++ b/stacks/duplicati/README.md
@@ -4,6 +4,7 @@
 
 ```bash
 docker run --rm -it --entrypoint sh duplicati/duplicati:canary
+/opt/duplicati/duplicati-cli help
 ```
 
 ## 启动