diff --git a/biscuit/apps/alsijil/views.py b/biscuit/apps/alsijil/views.py
index 6bbc146fc1ae169fc82c7c76bb1f79e366c7fd2c..587b24472f7ba787a562cb3f6bd25c4c972ff574 100644
--- a/biscuit/apps/alsijil/views.py
+++ b/biscuit/apps/alsijil/views.py
@@ -160,10 +160,7 @@ def full_register_group(request: HttpRequest, id_: int) -> HttpResponse:
     group = get_object_or_404(Group, pk=id_)
 
     # Get all lesson periods for the selected group
-    lesson_periods = LessonPeriod.objects.within_dates(
-        group.school.current_term.date_start,
-        group.school.current_term.date_end
-    ).filter_group(group).distinct()
+    lesson_periods = LessonPeriod.objects.filter_group(group).distinct()
 
     weeks = CalendarWeek.weeks_within(group.school.current_term.date_start, group.school.current_term.date_end)
     periods_by_day = {}