diff --git a/db/points_db.py b/db/points_db.py
index 0139963..50246eb 100644
--- a/db/points_db.py
+++ b/db/points_db.py
@@ -244,7 +244,7 @@ class PointsDBOperator(BaseDBOperator):
                 self.execute_update("""
                 UPDATE t_sign_record 
                 SET points = points + %s
-                WHERE wx_id = %s AND group__id = %s
+                WHERE wx_id = %s AND group_id = %s
                 """, (points, user_id, group_id))
             elif source == PointSource.GAME:
                 self.execute_update("""