diff --git a/src/aiida/storage/sqlite_dos/backend.py b/src/aiida/storage/sqlite_dos/backend.py
index 52099f7391..ff24b17a6a 100644
--- a/src/aiida/storage/sqlite_dos/backend.py
+++ b/src/aiida/storage/sqlite_dos/backend.py
@@ -203,7 +203,9 @@ class Model(BaseModel, defer_build=True):
         filepath: str = Field(
             title='Directory of the backend',
             description='Filepath of the directory in which to store data for this backend.',
-            default_factory=lambda: str(AiiDAConfigPathResolver.get_configuration_directory() / 'repository' / f'sqlite_dos_{uuid4().hex}'),
+            default_factory=lambda: str(
+                AiiDAConfigPathResolver.get_configuration_directory() / 'repository' / f'sqlite_dos_{uuid4().hex}'
+            ),
         )
 
         @field_validator('filepath')
diff --git a/tests/manage/configuration/test_config.py b/tests/manage/configuration/test_config.py
index 88aae97a69..667ee0643b 100644
--- a/tests/manage/configuration/test_config.py
+++ b/tests/manage/configuration/test_config.py
@@ -16,10 +16,10 @@
 import pytest
 from aiida.common import exceptions
 from aiida.manage.configuration import Profile, settings
-from aiida.manage.configuration.settings import AiiDAConfigPathResolver
 from aiida.manage.configuration.config import Config
 from aiida.manage.configuration.migrations import CURRENT_CONFIG_VERSION, OLDEST_COMPATIBLE_CONFIG_VERSION
 from aiida.manage.configuration.options import get_option
+from aiida.manage.configuration.settings import AiiDAConfigPathResolver
 from aiida.storage.sqlite_temp import SqliteTempBackend