diff --git a/v2rayN/v2rayN/Views/AddServerWindow.xaml.cs b/v2rayN/v2rayN/Views/AddServerWindow.xaml.cs
index bf0dd3d9..e83554a9 100644
--- a/v2rayN/v2rayN/Views/AddServerWindow.xaml.cs
+++ b/v2rayN/v2rayN/Views/AddServerWindow.xaml.cs
@@ -1,5 +1,4 @@
 using ReactiveUI;
-using System.Net.Security;
 using System.Reactive.Disposables;
 using System.Windows;
 using System.Windows.Controls;
@@ -307,4 +306,4 @@ namespace v2rayN.Views
             this.Close();
         }
     }
-}
\ No newline at end of file
+}