diff --git a/v2rayN/v2rayN/Views/AddServerWindow.xaml.cs b/v2rayN/v2rayN/Views/AddServerWindow.xaml.cs
index e75b304d..e91076df 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;