diff --git a/src/ifcopenshell-python/ifcopenshell/express/templates.py b/src/ifcopenshell-python/ifcopenshell/express/templates.py
index 3b0b043e9f..ad9ef898de 100644
--- a/src/ifcopenshell-python/ifcopenshell/express/templates.py
+++ b/src/ifcopenshell-python/ifcopenshell/express/templates.py
@@ -142,6 +142,7 @@ select = """%(documentation)s
 class IFC_PARSE_API %(name)s : public virtual IfcUtil::IfcBaseInterface {
 public:
     static const IfcParse::select_type& Class();
+    typedef aggregate_of< %(name)s > list;
 };
 """