diff --git a/How-to-use-debug-API.md b/How-to-use-debug-API.md
index fc2e7fc..32fa34f 100644
--- a/How-to-use-debug-API.md
+++ b/How-to-use-debug-API.md
@@ -1,6 +1,6 @@
 ### Get this repo
 ```
-git clone -b alpha https://github.com/MetaCubeX/Clash.Meta.git clash-meta
+git clone -b Alpha https://github.com/MetaCubeX/Clash.Meta.git clash-meta
 cd clash-meta
 ```