diff --git a/doc/_common.py b/doc/_common.py
index 4416302b..475e296f 100644
--- a/doc/_common.py
+++ b/doc/_common.py
@@ -1967,7 +1967,7 @@ class WheelUser(object):
             ['spec_dice', 0, '特殊骰子数(道具)'],
             ['curr_grid', 0, '当前格子(从1)'],
             ['last_present_dice_time', 0, '最后赠送色子时间'],
-            ['!award_grids', [], '已获大奖的格子'],
+            ['!award_grids', [0], '已获大奖的格子'],
         ]
 
 class WheelAwardItem(object):