diff --git a/nicegui/elements/scene_objects.py b/nicegui/elements/scene_objects.py
index b312a2735..c4c558720 100644
--- a/nicegui/elements/scene_objects.py
+++ b/nicegui/elements/scene_objects.py
@@ -1,3 +1,4 @@
+from __future__ import annotations
 from typing import Optional
 from .scene_object3d import Object3D