diff --git a/imports/construction/us_physics_parameters.py b/imports/construction/us_physics_parameters.py
index 858eba9c..415ae740 100644
--- a/imports/construction/us_physics_parameters.py
+++ b/imports/construction/us_physics_parameters.py
@@ -28,6 +28,7 @@ class UsPhysicsParameters(NrelPhysicsInterface):
     """
     Returns the city with the construction parameters assigned to the buildings
     """
+    # todo: erase
     city = self._city
     for building in city.buildings:
       try: