diff --git a/imports/construction/us_physics_parameters.py b/imports/construction/us_physics_parameters.py
index 00f4a8fa..3ace0850 100644
--- a/imports/construction/us_physics_parameters.py
+++ b/imports/construction/us_physics_parameters.py
@@ -105,7 +105,8 @@ class UsPhysicsParameters(NrelPhysicsInterface):
           layer.thickness = layer_archetype.thickness
           material = Material()
           archetype_material = layer_archetype.material
-          material.name = layer_archetype.name
+          material.name = archetype_material.name
+          material.id = archetype_material.id
           material.no_mass = archetype_material.no_mass
           if archetype_material.no_mass:
             material.thermal_resistance = archetype_material.thermal_resistance