diff --git a/tests/test-http-proxy.t b/tests/test-http-proxy.t
--- a/tests/test-http-proxy.t
+++ b/tests/test-http-proxy.t
@@ -8,7 +8,7 @@
   $ hg serve --config server.uncompressed=True -p $HGPORT -d --pid-file=hg.pid
   $ cat hg.pid >> $DAEMON_PIDS
   $ cd ..
-  $ tinyproxy.py $HGPORT1 localhost >proxy.log 2>&1 </dev/null &
+  $ tinyproxy.py $HGPORT1 localhost 2>proxy.log >/dev/null </dev/null &
   $ while [ ! -f proxy.pid ]; do sleep 0; done
   $ cat proxy.pid >> $DAEMON_PIDS
 
diff --git a/tests/tinyproxy.py b/tests/tinyproxy.py
--- a/tests/tinyproxy.py
+++ b/tests/tinyproxy.py
@@ -54,6 +54,7 @@ class ProxyHandler (httpserver.basehttpr
                          self.requestline, str(code), str(size),
                          ''.join([' %s:%s' % h for h in sorted(xheaders)]))
         # Flush for Windows, so output isn't lost on TerminateProcess()
+        sys.stdout.flush()
         sys.stderr.flush()
 
     def _connect_to(self, netloc, soc):