diff --git a/src/ifcgeom/schema_agnostic/Serialization.cpp b/src/ifcgeom/schema_agnostic/Serialization.cpp
index 1e618c5f06..41bc4f08e2 100644
--- a/src/ifcgeom/schema_agnostic/Serialization.cpp
+++ b/src/ifcgeom/schema_agnostic/Serialization.cpp
@@ -2,6 +2,7 @@
 
 #include <boost/algorithm/string/case_conv.hpp>
 
+/*
 namespace IfcGeom {
 	extern IfcUtil::IfcBaseClass* tesselate_Ifc2x3(const TopoDS_Shape& shape, double deflection);
 	extern IfcUtil::IfcBaseClass* tesselate_Ifc4(const TopoDS_Shape& shape, double deflection);
@@ -20,11 +21,14 @@ IfcUtil::IfcBaseClass* execute_based_on_schema(Fn fn1, Fn fn2, const std::string
 		throw IfcParse::IfcException("No geometry serialization available for " + schema_name);
 	}
 }
+*/
 
 IfcUtil::IfcBaseClass* IfcGeom::tesselate(const std::string& schema_name, const TopoDS_Shape& shape, double deflection) {
-	return execute_based_on_schema(IfcGeom::tesselate_Ifc2x3, IfcGeom::tesselate_Ifc4, schema_name, shape, deflection);
+	return nullptr;
+	// return execute_based_on_schema(IfcGeom::tesselate_Ifc2x3, IfcGeom::tesselate_Ifc4, schema_name, shape, deflection);
 }
 
 IfcUtil::IfcBaseClass* IfcGeom::serialise(const std::string& schema_name, const TopoDS_Shape& shape, bool advanced) {
-	return execute_based_on_schema(IfcGeom::serialise_Ifc2x3, IfcGeom::serialise_Ifc4, schema_name, shape, advanced);
+	return nullptr;
+	// return execute_based_on_schema(IfcGeom::serialise_Ifc2x3, IfcGeom::serialise_Ifc4, schema_name, shape, advanced);
 }
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