diff --git a/install.sh b/install.sh
index 64836ea..65dafc0 100644
--- a/install.sh
+++ b/install.sh
@@ -8,6 +8,7 @@ restart_docker(){
 
 
 check_config(){
+    local config_dir="./conf"
     # 如果配置文件不存在或者空白
     if [ ! -e "$config_dir/config.json" ] || [ ! -s "$config_dir/config.json" ];then
         echo "请先'创建配置'"