diff --git a/README.md b/README.md
index d1413b3..67e853f 100644
--- a/README.md
+++ b/README.md
@@ -188,7 +188,7 @@ Prerequisites:
 ```
 mkdir -p $(go env GOPATH)/src/github.com/aliyunContainerService
 cd $(go env GOPATH)/src/github.com/aliyunContainerService
-git clone https://http://github.com/aliyunContainerService/et-operator
+git clone https://github.com/aliyunContainerService/et-operator
 cd et-operator
 make
 ```