diff --git a/Program.cs b/Program.cs
index 1115a74..397add1 100644
--- a/Program.cs
+++ b/Program.cs
@@ -56,6 +56,7 @@ routeServer.Add("/",async(ctx)=>{
             {
                 p.StandardInput.Write(json);
                 p.StandardInput.Flush();
+                p.StandardInput.Close();
                 if(!p.HasExited) p.WaitForExit();
                 int statusCode=p.ExitCode;
                 switch(statusCode)