diff --git a/src/ifcwrap/Interface.h b/src/ifcwrap/Interface.h
index c7fa221b82..6860edd7f2 100644
--- a/src/ifcwrap/Interface.h
+++ b/src/ifcwrap/Interface.h
@@ -96,6 +96,10 @@ namespace IfcParse {
 		IfcSchema::IfcProduct* ifc_product = (IfcSchema::IfcProduct*) e;
 		return IfcGeom::create_brep_data(ifc_product);
 	}
+
+	void clean() { 
+		IfcGeom::Cache::Purge(); 
+	}
 }
 
 std::ostream& operator<< (std::ostream& os, const IfcParse::IfcFile& f);
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