diff --git a/biscuit/apps/alsijil/views.py b/biscuit/apps/alsijil/views.py
index 7058e31bc844fa18542c64783b777347355b729d..b488a8cd1775e05ba0d3c1c544de409686bdb5eb 100644
--- a/biscuit/apps/alsijil/views.py
+++ b/biscuit/apps/alsijil/views.py
@@ -104,8 +104,8 @@ def group_week(request: HttpRequest, week: Optional[int] = None) -> HttpResponse
     # Get all lesson periods for the selected group
     lesson_periods = LessonPeriod.objects.annotate(
         has_documentation=Exists(LessonDocumentation.objects.filter(
-            lesson_period=OuterRef('pk'),
-            ~Q(topic__exact='')
+            ~Q(topic__exact=''),
+            lesson_period=OuterRef('pk')
         ))
     ).filter(
         lesson__date_start__lte=week_start,