diff --git a/src/testdir/test_channel.py b/src/testdir/test_channel.py
index 6b2947d..8dba3ba 100644
--- a/src/testdir/test_channel.py
+++ b/src/testdir/test_channel.py
@@ -21,6 +21,9 @@
 
 class ThreadedTCPRequestHandler(socketserver.BaseRequestHandler):
 
+    def setup(self):
+        self.request.setsockopt(socket.IPPROTO_TCP, socket.TCP_NODELAY, 1)
+
     def handle(self):
         print("=== socket opened ===")
         while True: