diff --git a/dulwich/tests/test_blackbox.py b/dulwich/tests/test_blackbox.py
index c265f513..d288f26f 100644
--- a/dulwich/tests/test_blackbox.py
+++ b/dulwich/tests/test_blackbox.py
@@ -1,70 +1,73 @@
 # test_blackbox.py -- blackbox tests
 # Copyright (C) 2010 Jelmer Vernooij <jelmer@samba.org>
 #
 # This program is free software; you can redistribute it and/or
 # modify it under the terms of the GNU General Public License
 # as published by the Free Software Foundation; version 2
 # of the License or (at your option) a later version.
 #
 # This program is distributed in the hope that it will be useful,
 # but WITHOUT ANY WARRANTY; without even the implied warranty of
 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 # GNU General Public License for more details.
 #
 # You should have received a copy of the GNU General Public License
 # along with this program; if not, write to the Free Software
 # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
 # MA  02110-1301, USA.
 
 """Blackbox tests for Dulwich commands."""
 
 import tempfile
 import shutil
 
 from dulwich.repo import (
     Repo,
     )
 from dulwich.tests import (
     BlackboxTestCase,
     )
 
 
 class GitReceivePackTests(BlackboxTestCase):
     """Blackbox tests for dul-receive-pack."""
 
     def setUp(self):
         super(GitReceivePackTests, self).setUp()
         self.path = tempfile.mkdtemp()
         self.addCleanup(shutil.rmtree, self.path)
         self.repo = Repo.init(self.path)
 
     def test_basic(self):
         process = self.run_command("dul-receive-pack", [self.path])
         (stdout, stderr) = process.communicate(b"0000")
-        self.assertEqual(b'', stderr, stderr)
         self.assertEqual(b'0000', stdout[-4:])
         self.assertEqual(0, process.returncode)
 
     def test_missing_arg(self):
         process = self.run_command("dul-receive-pack", [])
         (stdout, stderr) = process.communicate()
-        self.assertEqual([b'usage: dul-receive-pack <git-dir>'], stderr.splitlines())
+        self.assertEqual(
+            [b'usage: dul-receive-pack <git-dir>'],
+            stderr.splitlines()[:-1])
         self.assertEqual(b'', stdout)
         self.assertEqual(1, process.returncode)
 
 
 class GitUploadPackTests(BlackboxTestCase):
     """Blackbox tests for dul-upload-pack."""
 
     def setUp(self):
         super(GitUploadPackTests, self).setUp()
         self.path = tempfile.mkdtemp()
         self.addCleanup(shutil.rmtree, self.path)
         self.repo = Repo.init(self.path)
 
     def test_missing_arg(self):
         process = self.run_command("dul-upload-pack", [])
         (stdout, stderr) = process.communicate()
-        self.assertEqual([b'usage: dul-upload-pack <git-dir>'], stderr.splitlines())
+        self.assertEqual(
+            [b'usage: dul-upload-pack <git-dir>'],
+            stderr.splitlines()[:-1])
         self.assertEqual(b'', stdout)
         self.assertEqual(1, process.returncode)