diff --git a/src/ifcconvert/ColladaSerializer.h b/src/ifcconvert/ColladaSerializer.h
index 60fd39370f..4529a2d6a6 100644
--- a/src/ifcconvert/ColladaSerializer.h
+++ b/src/ifcconvert/ColladaSerializer.h
@@ -141,8 +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;