diff --git a/debye_bec/devices/reffoilchanger.py b/debye_bec/devices/reffoilchanger.py
index 2d96898..f554000 100644
--- a/debye_bec/devices/reffoilchanger.py
+++ b/debye_bec/devices/reffoilchanger.py
@@ -1,5 +1,5 @@
 """ ES2 Reference Foil Changer"""
-
+from __future__ import annotations
 import enum
 from ophyd import Component as Cpt
 from ophyd import EpicsSignal, EpicsSignalRO, EpicsSignalWithRBV