diff --git a/lib/train/transports/local.rb b/lib/train/transports/local.rb
index 9f8c9b4d..fac926b0 100644
--- a/lib/train/transports/local.rb
+++ b/lib/train/transports/local.rb
@@ -81,7 +81,7 @@ def start_named_pipe_server(pipe_name)
         script = <<-EOF
           $ErrorActionPreference = 'Stop'
 
-          $pipeServer = New-Object System.IO.Pipes.NamedPipeServerStream('#{pipe_name}', [System.IO.Pipes.PipeDirection]::InOut)
+          $pipeServer = New-Object System.IO.Pipes.NamedPipeServerStream('#{pipe_name}')
           $pipeReader = New-Object System.IO.StreamReader($pipeServer)
           $pipeWriter = New-Object System.IO.StreamWriter($pipeServer)