diff --git a/server/vbv_lernwelt/dashboard/graphql/queries.py b/server/vbv_lernwelt/dashboard/graphql/queries.py
index b0896860..ce87845f 100644
--- a/server/vbv_lernwelt/dashboard/graphql/queries.py
+++ b/server/vbv_lernwelt/dashboard/graphql/queries.py
@@ -57,7 +57,6 @@ class DashboardQuery(graphene.ObjectType):
                 course_session_ids.update(
                     group.course_session.all().values_list("id", flat=True)
                 )
-        course_session_ids = set()
 
         # let's assume that users are not supervisors in one region/group and trainer in another
         if not course_session_ids: