diff --git a/CTZLauncher/MainWindow.xaml.cs b/CTZLauncher/MainWindow.xaml.cs
index 718cbc5..8457db7 100644
--- a/CTZLauncher/MainWindow.xaml.cs
+++ b/CTZLauncher/MainWindow.xaml.cs
@@ -156,7 +156,7 @@ namespace CTZLauncher
                 MessageBox.Show("请输入账号密码!");
                 return;
             }
-            CTZAuthenticator auth = new CTZAuthenticator(username.Text, password.Text, "citycraft.cn", serverport);
+            CTZAuthenticator auth = new CTZAuthenticator(username.Text, password.Text, serveraddress, serverport);
             try
             {
                 if (auth.isRegistered())