diff --git a/csharp/App/BmsTunnel/BmsTunnel.cs b/csharp/App/BmsTunnel/BmsTunnel.cs
index b01632292..d7f455996 100644
--- a/csharp/App/BmsTunnel/BmsTunnel.cs
+++ b/csharp/App/BmsTunnel/BmsTunnel.cs
@@ -23,12 +23,12 @@ public class BmsTunnel : IDisposable
     private const Byte TunnelCode = 0x41;
     private const String CrcError = "?? CRC FAILED";
 
-    public BmsTunnel(String tty, Byte node, SshHost? host)
+    public BmsTunnel(String tty, Byte node)
     {
         Tty  = tty;
         Node = node;
 
-        StopSerialStarter(host);
+        StopSerialStarter();
 
         SerialPort = new SerialPort(Tty, BaudRate, Parity, DataBits, StopBits);
         SerialPort.ReadTimeout = 100;
@@ -165,11 +165,10 @@ public class BmsTunnel : IDisposable
               .Concat(NewLine);
     }
 
-    private void StopSerialStarter(SshHost? host)
+    private void StopSerialStarter()
     {
         CliPrograms.StopTty
                    .WithArguments(Tty)
-                   .OnHost(host)
                    .ExecuteBufferedAsync()
                    .Task
                    .Wait(3000);