diff --git a/mxcubeweb/core/components/harvester.py b/mxcubeweb/core/components/harvester.py
index 0489a2312..4ee9f706c 100644
--- a/mxcubeweb/core/components/harvester.py
+++ b/mxcubeweb/core/components/harvester.py
@@ -1,4 +1,5 @@
 # -*- coding: utf-8 -*-
+from __future__ import annotations
 import logging
 
 from mxcubecore import HardwareRepository as HWR