diff --git a/src/ifcgeom/kernels/opencascade/OpenCascadeConversionResult.cpp b/src/ifcgeom/kernels/opencascade/OpenCascadeConversionResult.cpp
index b5584bb50a..bc5b5d2860 100644
--- a/src/ifcgeom/kernels/opencascade/OpenCascadeConversionResult.cpp
+++ b/src/ifcgeom/kernels/opencascade/OpenCascadeConversionResult.cpp
@@ -175,7 +175,7 @@ void ifcopenshell::geometry::OpenCascadeShape::Triangulate(ifcopenshell::geometr
 
 				taxonomy_transform(place.components_, p);
 
-				int current = t->addVertex(surface_style_id, p.X(), p.Y(), p.Z());
+				int current = t->addVertex(item_id, surface_style_id, p.X(), p.Y(), p.Z());
 
 				std::vector<std::pair<int, int>> segments;
 				if (i > 1) {
diff --git a/src/ifcparse/aggregate_of_instance.h b/src/ifcparse/aggregate_of_instance.h
index 3ee8507426..c101856dab 100644
--- a/src/ifcparse/aggregate_of_instance.h
+++ b/src/ifcparse/aggregate_of_instance.h
@@ -92,7 +92,7 @@ class aggregate_of {
         typename U::list::ptr result(new typename U::list);
         for (it i = begin(); i != end(); ++i) {
             if ((*i)->as<U>()) {
-                result->push(r->push((*i)->as<U>());
+                result->push((*i)->as<U>());
             }
         }
         return result;
@@ -154,7 +154,7 @@ class IFC_PARSE_API aggregate_of_aggregate_of_instance {
             typename std::vector<U*> to;
             for (inner_it inner = from.begin(); inner != from.end(); ++inner) {
                 if ((*inner)->as<U>()) {
-                    to.push_back((*i)->as<U>());
+                    to.push_back((*inner)->as<U>());
                 }
             }
             result->push(to);