diff --git a/resource_management/routes/interfaces.py b/resource_management/routes/interfaces.py
index 6dfa7a297aef6753c3a50411b55ea5c5520b32a5..51a26a912e6c431395a8ceea0afd9463bffe95f1 100644
--- a/resource_management/routes/interfaces.py
+++ b/resource_management/routes/interfaces.py
@@ -12,6 +12,7 @@ router = APIRouter()
 
 FIRST_LAG_INDEX = 0
 
+
 class InterfaceCounts(pydantic.BaseModel):
     total: int
     available: int
@@ -70,7 +71,7 @@ async def load_new_router_interfaces(fqdn: str) -> InterfacesSummary:
 async def reconcile_current_router_interfaces(fqdn: str):
     raise HTTPException(
         status_code=501,
-        detail=f'not implemented')
+        detail='not implemented')
 
 
 @router.post('/next-lag/{fqdn}')
diff --git a/test/test_interfaces_routes.py b/test/test_interfaces_routes.py
index d1d4bfcfbc22f4cc6b9ba10fad1e2b37db79a0ea..ed0158d337778a411dcae2570f76c3919f82e9a3 100644
--- a/test/test_interfaces_routes.py
+++ b/test/test_interfaces_routes.py
@@ -44,8 +44,6 @@ def test_next_lag(client, resources_db, mocked_router, router_name):
         assert row.availability == model.AvalabilityStates.RESERVED.name
 
 
-
-
 def test_next_physical(client, resources_db, mocked_router, router_name):
 
     if '.lab.' in router_name: