diff --git a/src/ifcgeom_schema_agnostic/IfcGeomIteratorSettings.h b/src/ifcgeom_schema_agnostic/IfcGeomIteratorSettings.h
index 814fc4ddcd..192a4bfd59 100644
--- a/src/ifcgeom_schema_agnostic/IfcGeomIteratorSettings.h
+++ b/src/ifcgeom_schema_agnostic/IfcGeomIteratorSettings.h
@@ -124,7 +124,8 @@ namespace IfcGeom
         IteratorSettings()
             : settings_(WELD_VERTICES | BOOLEAN_ATTEMPT_2D) // OR options that default to true here
             , deflection_tolerance_(1.e-3)
-			, angular_tolerance_(0.5)
+            , angular_tolerance_(0.5)
+            , force_space_transparency_(-1.0)
         {
         }