diff --git a/nova/objects/aggregate.py b/nova/objects/aggregate.py
index bbb35e4f8..382082290 100644
--- a/nova/objects/aggregate.py
+++ b/nova/objects/aggregate.py
@@ -144,22 +144,15 @@ class Aggregate(base.NovaObject):
         return self.metadata.get('availability_zone', None)
 
 
-def _make_list(context, list_obj, item_cls, db_list):
-    list_obj.objects = []
-    for db_item in db_list:
-        item = item_cls._from_db_object(context, item_cls(), db_item)
-        list_obj.objects.append(item)
-    list_obj.obj_reset_changes()
-    return list_obj
-
-
 class AggregateList(base.ObjectListBase, base.NovaObject):
     @base.remotable_classmethod
     def get_all(cls, context):
         db_aggregates = db.aggregate_get_all(context)
-        return _make_list(context, AggregateList(), Aggregate, db_aggregates)
+        return base.obj_make_list(context, AggregateList(), Aggregate,
+                                  db_aggregates)
 
     @base.remotable_classmethod
     def get_by_host(cls, context, host):
         db_aggregates = db.aggregate_get_by_host(context, host)
-        return _make_list(context, AggregateList(), Aggregate, db_aggregates)
+        return base.obj_make_list(context, AggregateList(), Aggregate,
+                                  db_aggregates)