diff --git a/install/data/install.sql b/install/data/install.sql
index 9dd85a1..55443bd 100644
--- a/install/data/install.sql
+++ b/install/data/install.sql
@@ -1805,11 +1805,11 @@ CREATE TABLE `dzz_user` (
   `adminid` tinyint(1) NOT NULL DEFAULT '0',
   `groupid` smallint(6) UNSIGNED NOT NULL DEFAULT '9',
   `language` varchar(12) NOT NULL DEFAULT 'zh-cn' COMMENT '语言',
-  `regip` char(15) NOT NULL,
+  `regip` char(15) NOT NULL NOT NULL DEFAULT '',
   `regdate` int(10) UNSIGNED NOT NULL DEFAULT '0',
   `secques` char(8) NOT NULL DEFAULT '',
   `salt` char(6) NOT NULL DEFAULT '',
-  `authstr` char(30) NOT NULL,
+  `authstr` char(30) NOT NULL DEFAULT '',
   `newprompt` smallint(6) UNSIGNED NOT NULL DEFAULT '0' COMMENT '消息数',
   `timeoffset` char(4) NOT NULL DEFAULT '9999',
   `grid` smallint(6) NOT NULL DEFAULT '0',