diff --git a/tests/unit/test_layer.py b/tests/unit/test_layer.py
index 1511a9833e8c901811990c5ba2b4d637f0c8f6a5..495d1bdc3e58a96d91ff706cdf39021f347522d5 100644
--- a/tests/unit/test_layer.py
+++ b/tests/unit/test_layer.py
@@ -91,6 +91,7 @@ def routes():
         Route(name="Route 2", utterances=["Goodbye", "Bye", "Au revoir"]),
     ]
 
+
 @pytest.fixture
 def dynamic_routes():
     return [