diff --git a/backend/ticket/views.py b/backend/ticket/views.py
index e669864..c83a3b7 100644
--- a/backend/ticket/views.py
+++ b/backend/ticket/views.py
@@ -109,11 +109,13 @@ class TicketListView(APIView):
         filter_by = request.query_params.get('filter', None)
         sort = request.query_params.get('sort', None)
         if filter_by:
-            tickets.filter(status=str(filter_by))
+            tickets = tickets.filter(status=str(filter_by))
         if sort:
             if sort not in ['created_at', '-created_at']:
                 return Response({'detail': 'wrong sort paramter'}, status=status.HTTP_400_BAD_REQUEST)
-            tickets.order_by(sort)
+            tickets = tickets.order_by(sort)
+        else:
+            tickets = tickets.order_by('-created_at')
         paginator = self.pagination_class()
         paginated_tickets = paginator.paginate_queryset(tickets, request)
         tickets_ser = self.serializer_class(instance=paginated_tickets, many=True, context={'request': request})