diff --git a/v2rayN/ServiceLib/Handler/CoreHandler.cs b/v2rayN/ServiceLib/Handler/CoreHandler.cs
index dc597167..c16f3fb9 100644
--- a/v2rayN/ServiceLib/Handler/CoreHandler.cs
+++ b/v2rayN/ServiceLib/Handler/CoreHandler.cs
@@ -323,7 +323,7 @@ namespace ServiceLib.Handler
 
                 if (isNeedSudo && _config.TunModeItem.LinuxSudoPwd.IsNotEmpty())
                 {
-                    var pwd = DesUtils.Decrypt(_config.TunModeItem.LinuxSudoPwd);
+                    var pwd = AesUtils.Decrypt(_config.TunModeItem.LinuxSudoPwd);
                     await Task.Delay(10);
                     await proc.StandardInput.WriteLineAsync(pwd);
                     await Task.Delay(10);
@@ -418,4 +418,4 @@ namespace ServiceLib.Handler
 
         #endregion Process
     }
-}
\ No newline at end of file
+}