diff --git a/aleksis/apps/chronos/models.py b/aleksis/apps/chronos/models.py
index d4856154598b401a0c5136cca0c77119842c625a..653f581cd5f9e24dcdd5df999a60f0eb93803de8 100644
--- a/aleksis/apps/chronos/models.py
+++ b/aleksis/apps/chronos/models.py
@@ -463,7 +463,7 @@ class LessonEvent(CalendarEvent):
                     or (
                         type_ == "ROOM"
                         and check_global_permission(
-                            request.user, "chronos.chronos.view_all_room_timetables"
+                            request.user, "chronos.view_all_room_timetables"
                         )
                     )
                     or (