diff --git a/bin/tls.sh b/bin/tls.sh
index 6b9c6c2..ac03fd1 100644
--- a/bin/tls.sh
+++ b/bin/tls.sh
@@ -76,3 +76,9 @@ update_acme_domain(){
     local DOMAIN="${2}"   # 域名
     modify_json_file  "$CONFIG_FILE" ".inbounds[0].tls.acme.domain[0]" "$DOMAIN"
 }
+
+update_server_name(){
+    local CONFIG_FILE="${1}" # 配置文件
+    local DOMAIN="${2}"   # 域名
+    modify_json_file  "$CONFIG_FILE" ".inbounds[0].tls.server_name" "$DOMAIN"
+}
\ No newline at end of file
diff --git a/install.sh b/install.sh
index f222187..bc74d40 100644
--- a/install.sh
+++ b/install.sh
@@ -74,7 +74,7 @@ ask_update_domain(){
   fi
 
   # 修改server_name
-  modify_json_file  "$CONFIG_FILE" ".inbounds[0].tls.server_name" "$DOMAIN"
+  update_server_name "$CONFIG_FILE" "$DOMAIN"
 
   # 是否存在acme域名, 存在则修改
   if is_config_use_acme "$CONFIG_FILE"; then