diff --git a/centos7-system-install.sh b/centos7-system-install.sh
index b630c72..79816a3 100644
--- a/centos7-system-install.sh
+++ b/centos7-system-install.sh
@@ -13,8 +13,13 @@ registry = "https://github.com/rust-lang/crates.io-index"
 replace-with = 'ustc'
 [source.ustc]
 registry = "git://mirrors.ustc.edu.cn/crates.io-index"
+# 如果所处的环境中不允许使用 git 协议，可以把上面的地址改为
 #registry = "https://mirrors.ustc.edu.cn/crates.io-index"
-EOF
+
+[net]
+git-fetch-with-cli = true
+
+EOF 
 
 # docker加速
 mkdir -p /etc/docker