diff --git a/scores/dao/statistic_dao.py b/scores/dao/statistic_dao.py
index 3590c17..943975e 100644
--- a/scores/dao/statistic_dao.py
+++ b/scores/dao/statistic_dao.py
@@ -50,11 +50,9 @@ def get_failing_students_dao(db):
         .order_by(ClassInfo.id, Score.num)
         .all())
 
-    return [{"sid": r.sid,
+    return [{
             "name": r.name,
             "class_name": r.class_name,
-            "num": r.num,
-            "t_subject": r.tsub,
             "score": r.score,}
         for r in results]