diff --git a/api/__init__.py b/api/__init__.py
index 7f680c6..b621991 100644
--- a/api/__init__.py
+++ b/api/__init__.py
@@ -151,6 +151,6 @@ from .s34_sa_cal import calculate_service_area
 from .s34_sa import get_service_area_schema, get_service_area, set_service_area, add_service_area, delete_service_area, get_all_service_area_ids, get_all_service_areas
 from .s34_sa_gen import generate_service_area
 
-from .s35_vd import calculate_virtual_district
+from .s35_vd_cal import calculate_virtual_district
 
 from .s36_wda_cal import calculate_demand_to_nodes, calculate_demand_to_region, calculate_demand_to_network
diff --git a/api/s35_vd.py b/api/s35_vd_cal.py
similarity index 100%
rename from api/s35_vd.py
rename to api/s35_vd_cal.py