diff --git a/src/demandlib/vdi/regions.py b/src/demandlib/vdi/regions.py
index d1343d4..a07c805 100644
--- a/src/demandlib/vdi/regions.py
+++ b/src/demandlib/vdi/regions.py
@@ -556,7 +556,7 @@ def get_load_curve_houses(self):
                     [house["house_type"]],
                     load_curve_house.columns,
                 ],
-                names=["house_type", "energy"]
+                names=["house_type", "energy"],
             )
             house_profiles[house["name"]] = load_curve_house
         return pd.concat(