diff --git a/tests/integration/services/conftest.py b/tests/integration/services/conftest.py
index 8fc396d01..9b8c49eb7 100644
--- a/tests/integration/services/conftest.py
+++ b/tests/integration/services/conftest.py
@@ -25,7 +25,9 @@
 
 
 @pytest.fixture()
-def service_factory(fs: pyfakefs.fake_filesystem.FakeFilesystem, fake_path, simple_charm) -> services.CharmcraftServiceFactory:
+def service_factory(
+    fs: pyfakefs.fake_filesystem.FakeFilesystem, fake_path, simple_charm
+) -> services.CharmcraftServiceFactory:
     fake_project_dir = fake_path / "project"
     fake_project_dir.mkdir()