diff --git a/src/server/sql/Merge_Pet.sql b/src/server/sql/Merge_Pet.sql
index 13772ec7..62021d38 100644
--- a/src/server/sql/Merge_Pet.sql
+++ b/src/server/sql/Merge_Pet.sql
@@ -162,8 +162,8 @@ CREATE TABLE IF NOT EXISTS t_activity_mod (
     `start_time` int unsigned NOT NULL DEFAULT '0' COMMENT '活动开始时间',
     `end_time` int unsigned NOT NULL DEFAULT '0' COMMENT '活动结束时间',
     `level_limit` int unsigned NOT NULL DEFAULT '0' COMMENT '等级限制',
-    `cfg` TEXT DEFAULT '' COMMENT '活动配置',
-    `cfg_buf` BLOB DEFAULT NULL COMMENT '活动配置buf',
-    `extra` TEXT DEFAULT '' COMMENT '活动额外数据',
+    `cfg` TEXT  COMMENT '活动配置',
+    `cfg_buf` BLOB  COMMENT '活动配置buf',
+    `extra` TEXT  COMMENT '活动额外数据',
     `updateTime` int unsigned NOT NULL DEFAULT '0' COMMENT '更新时间'
 ) ENGINE = InnoDB DEFAULT CHARSET = utf8mb4 COLLATE utf8mb4_general_ci COMMENT = '系统活动表';
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