diff --git a/swh/web/tests/test_gunicorn_config.py b/swh/web/tests/test_gunicorn_config.py
index dcf3660f..7b15c9e0 100644
--- a/swh/web/tests/test_gunicorn_config.py
+++ b/swh/web/tests/test_gunicorn_config.py
@@ -1,49 +1,51 @@
 # Copyright (C) 2019-2020  The Software Heritage developers
 # See the AUTHORS file at the top-level directory of this distribution
 # License: GNU General Public License version 3, or any later version
 # See top-level LICENSE file for more information
 
 import os
 from unittest.mock import patch
 
 import swh.web.gunicorn_config as gunicorn_config
 
 
 def test_post_fork_default():
     with patch('sentry_sdk.init') as sentry_sdk_init:
         gunicorn_config.post_fork(None, None)
 
     sentry_sdk_init.assert_not_called()
 
 
 def test_post_fork_with_dsn_env():
     django_integration = object()  # unique object to check for equality
     with patch('swh.web.gunicorn_config.DjangoIntegration',
                new=lambda: django_integration):
         with patch('sentry_sdk.init') as sentry_sdk_init:
             with patch.dict(os.environ, {'SWH_SENTRY_DSN': 'test_dsn'}):
                 gunicorn_config.post_fork(None, None)
 
     sentry_sdk_init.assert_called_once_with(
         dsn='test_dsn',
+        environment=None,
         integrations=[django_integration],
         debug=False,
         release=None,
     )
 
 
 def test_post_fork_debug():
     django_integration = object()  # unique object to check for equality
     with patch('swh.web.gunicorn_config.DjangoIntegration',
                new=lambda: django_integration):
         with patch('sentry_sdk.init') as sentry_sdk_init:
             with patch.dict(os.environ, {'SWH_SENTRY_DSN': 'test_dsn',
                                          'SWH_SENTRY_DEBUG': '1'}):
                 gunicorn_config.post_fork(None, None)
 
     sentry_sdk_init.assert_called_once_with(
         dsn='test_dsn',
+        environment=None,
         integrations=[django_integration],
         debug=True,
         release=None,
     )