diff --git a/participation/views.py b/participation/views.py
index 18ffacf..e7ed4ef 100644
--- a/participation/views.py
+++ b/participation/views.py
@@ -1885,7 +1885,7 @@ class GSheetNotificationsView(View):
         if not await Tournament.objects.filter(pk=kwargs['pk']).aexists():
             return HttpResponse(status=404)
 
-        tournament = await Tournament.objects.prefetch_related('participations', 'pools').aget(pk=kwargs['pk'])
+        tournament = await Tournament.objects.prefetch_related('participation_set', 'pools').aget(pk=kwargs['pk'])
         expected_channel_id = sha1(f"{tournament.name}-{timezone.now().date()}-{request.site.domain}".encode()) \
             .hexdigest()