diff --git a/.zshrc b/.zshrc
index c193bda..90bfdcd 100644
--- a/.zshrc
+++ b/.zshrc
@@ -175,10 +175,18 @@ function git_config() {
 }
 
 function git_config_work() {
+  if [ ! $# -eq 2 ]; then
+    echo 'should be like git_config_work {name} {email}'
+    exit 1
+  fi
   git_config $1 $2 'ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIF23DQtdH5PODF9fYUHr49I1J3lfKLAPk4LG54MVUTcg'
 }
 
 function git_config_play() {
+  if [ ! $# -eq 1 ]; then 
+    echo 'should be like gait_config_play {email}'
+    exit 1
+  fi
   git_config d0zingcat $1 'ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIPaVruhhL4O9BiAncnW1wH3jc7/hsqsXLknA8Xtnjjee'
 }
 
diff --git a/setup.sh b/setup.sh
index 7a84e95..c6a8fba 100755
--- a/setup.sh
+++ b/setup.sh
@@ -212,6 +212,7 @@ function recover_kubectl() {
 function new_recover() {
     # recover_rust
     recover_kubectl
+    echo "don't forget to change the email address in git config"
 }
 
 function post_recover() {