diff --git a/oot.py b/oot.py
index e5d6324..c6368e5 100644
--- a/oot.py
+++ b/oot.py
@@ -53,7 +53,7 @@ def get_scene_children(obj: bpy.types.Object, name: str):
     for scene_obj in scene_objs:
         get_scene_children(scene_obj, scene_obj.name)
 
-    fake_room = RoomRenderInfo(render_state, None)
+    fake_room = RoomRenderInfo(render_state, "")
     for obj in bpy.data.objects:
         if obj.name not in oot_room_lookup:
             oot_room_lookup[obj.name] = fake_room