1 files changed, 5 insertions, 8 deletions
diff --git a/src/mailman/rest/lists.py b/src/mailman/rest/lists.py
index 3d2ed072c..dc1d75203 100644
--- a/src/mailman/rest/lists.py
+++ b/src/mailman/rest/lists.py
@@ -107,16 +107,14 @@ class _ListBase(CollectionMixin):
 
     def _get_collection(self, request):
         """See `CollectionMixin`."""
-        return self._filter_lists(
-            request, list(getUtility(IListManager)))
+        return self._filter_lists(request)
 
-    def _filter_lists(self, request, lists):
+    def _filter_lists(self, request, **kw):
         """Filter a collection using query parameters."""
         only_advertised = request.get_param_as_bool('only_advertised')
         if only_advertised:
-            return [l for l in lists if l.advertised]
-        else:
-            return lists
+            kw['advertised'] = True
+        return getUtility(IListManager).find(**kw)
 
 
 @public
@@ -308,8 +306,7 @@ class ListsForDomain(_ListBase):
 
     def _get_collection(self, request):
         """See `CollectionMixin`."""
-        return self._filter_lists(
-            request, list(self._domain.mailing_lists))
+        return self._filter_lists(request, mail_host=self._domain.mail_host)
 
 
 @public