diff --git a/v2rayN/ServiceLib/Handler/CoreAdminHandler.cs b/v2rayN/ServiceLib/Handler/CoreAdminHandler.cs
index df633b24..3e7d3f93 100644
--- a/v2rayN/ServiceLib/Handler/CoreAdminHandler.cs
+++ b/v2rayN/ServiceLib/Handler/CoreAdminHandler.cs
@@ -45,7 +45,6 @@ public class CoreAdminHandler
                 RedirectStandardOutput = true,
                 RedirectStandardError = true,
                 CreateNoWindow = true,
-                StandardInputEncoding = Encoding.UTF8,
                 StandardOutputEncoding = Encoding.UTF8,
                 StandardErrorEncoding = Encoding.UTF8,
             }