diff --git a/borgmatic/borg/create.py b/borgmatic/borg/create.py
index 23304843..200f77c2 100644
--- a/borgmatic/borg/create.py
+++ b/borgmatic/borg/create.py
@@ -243,9 +243,13 @@ def create_archive(
         numeric_ids_flags = ('--numeric-owner',) if location_config.get('numeric_owner') else ()
 
     if feature.available(feature.Feature.UPLOAD_RATELIMIT, local_borg_version):
-        upload_ratelimit_flags = ('--upload-ratelimit', str(remote_rate_limit)) if remote_rate_limit else ()
+        upload_ratelimit_flags = (
+            ('--upload-ratelimit', str(remote_rate_limit)) if remote_rate_limit else ()
+        )
     else:
-        upload_ratelimit_flags = ('--remote-ratelimit', str(remote_rate_limit)) if remote_rate_limit else ()
+        upload_ratelimit_flags = (
+            ('--remote-ratelimit', str(remote_rate_limit)) if remote_rate_limit else ()
+        )
 
     full_command = (
         tuple(local_path.split(' '))
diff --git a/tests/unit/borg/test_create.py b/tests/unit/borg/test_create.py
index 66128b97..c3e16109 100644
--- a/tests/unit/borg/test_create.py
+++ b/tests/unit/borg/test_create.py
@@ -641,7 +641,9 @@ def test_create_archive_with_compression_calls_borg_with_compression_parameters(
 @pytest.mark.parametrize(
     'feature_available,option_flag', ((True, '--upload-ratelimit'), (False, '--remote-ratelimit')),
 )
-def test_create_archive_with_remote_rate_limit_calls_borg_with_upload_ratelimit_parameters(feature_available, option_flag):
+def test_create_archive_with_remote_rate_limit_calls_borg_with_upload_ratelimit_parameters(
+    feature_available, option_flag
+):
     flexmock(module).should_receive('borgmatic_source_directories').and_return([])
     flexmock(module).should_receive('deduplicate_directories').and_return(('foo', 'bar'))
     flexmock(module).should_receive('map_directories_to_devices').and_return({})
diff --git a/tox.ini b/tox.ini
index 7d8340c6..a58c871d 100644
--- a/tox.ini
+++ b/tox.ini
@@ -13,7 +13,7 @@ whitelist_externals =
 passenv = COVERAGE_FILE
 commands =
     pytest {posargs}
-    py38,py39: black --check .
+    py38,py39,py310: black --check .
     isort --check-only --settings-path setup.cfg .
     flake8 borgmatic tests