diff --git a/exports/building_energy/idf.py b/exports/building_energy/idf.py
index e2931edb..2644d00d 100644
--- a/exports/building_energy/idf.py
+++ b/exports/building_energy/idf.py
@@ -508,7 +508,7 @@ class Idf:
       for surface in building.surfaces:
         if surface.type == cte.WALL:
           wwr = surface.associated_thermal_boundaries[0].window_ratio
-      self._idf.set_wwr(wwr, construction='glazing_1')
+      self._idf.set_wwr(wwr, construction='window_construction_1')
 
   def _add_windows_by_vertices(self, boundary):
     raise NotImplementedError