diff --git a/tests/testserver.nim b/tests/testserver.nim
index f4a43c0..79cf814 100644
--- a/tests/testserver.nim
+++ b/tests/testserver.nim
@@ -10,7 +10,7 @@ import strutils, unittest
 import ../asyncdispatch2
 
 proc serveStreamClient(server: StreamServer,
-                       transp: StreamTransport, udata: pointer) {.async.} =
+                       transp: StreamTransport) {.async.} =
   discard
 
 proc serveDatagramClient(transp: DatagramTransport,