diff --git a/src/ifcconvert/ColladaSerializer.h b/src/ifcconvert/ColladaSerializer.h
index 3eaba5988d..4529a2d6a6 100644
--- a/src/ifcconvert/ColladaSerializer.h
+++ b/src/ifcconvert/ColladaSerializer.h
@@ -44,7 +44,6 @@
 #include "../ifcgeom/IfcGeomIterator.h"
 
 #include "../ifcconvert/GeometrySerializer.h"
-#include "../ifcparse/Ifc2x3.h"
 
 class ColladaSerializer : public GeometrySerializer
 {
@@ -142,8 +141,8 @@ private:
 			else
 			{
 				// Retrieve the IfcBuildingStorey
-				Ifc2x3::IfcBuildingStorey* storey1 = (Ifc2x3::IfcBuildingStorey*)parent1->product();
-				Ifc2x3::IfcBuildingStorey* storey2 = (Ifc2x3::IfcBuildingStorey*)parent2->product();
+				IfcSchema::IfcBuildingStorey* storey1 = (IfcSchema::IfcBuildingStorey*)parent1->product();
+				IfcSchema::IfcBuildingStorey* storey2 = (IfcSchema::IfcBuildingStorey*)parent2->product();
 
 				bool res = true;