diff --git a/taiga/projects/tasks/api.py b/taiga/projects/tasks/api.py
index 7b748e37..0e8f9549 100644
--- a/taiga/projects/tasks/api.py
+++ b/taiga/projects/tasks/api.py
@@ -74,6 +74,7 @@ class TaskViewSet(OCCResourceMixin, VotedResourceMixin, HistoryResourceMixin, Wa
                        "created_date",
                        "modified_date",
                        "assigned_to",
+                       "us_order",
                        "subject",
                        "total_voters")