diff --git a/database/wheeldb.sql b/database/wheeldb.sql
index 6185036d..ee2a6f3b 100644
--- a/database/wheeldb.sql
+++ b/database/wheeldb.sql
@@ -183,7 +183,6 @@ CREATE TABLE `t_bag` (
   `modifytime` int(11) NOT NULL DEFAULT '0' COMMENT '修改时间',
   KEY `idx_account_id` (`account_id`),
   KEY `idx_account_id_item_id` (`account_id`, `item_id`),
-  KEY `idx_expiretime` (`expiretime`),
   PRIMARY KEY (`idx`)
 ) ENGINE=InnoDB AUTO_INCREMENT=10000 DEFAULT CHARSET=utf8 COLLATE=utf8_bin;
 /*!40101 SET character_set_client = @saved_cs_client */;