diff --git a/db/update4.2.sql b/db/update4.2.sql
index 77b04c362d..9e741ab94d 100644
--- a/db/update4.2.sql
+++ b/db/update4.2.sql
@@ -1,3 +1,4 @@
 ALTER TABLE `zt_extension` ADD `depends` VARCHAR( 100 ) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL AFTER `installedTime` ;
 ALTER TABLE `zt_extension` CHANGE `zentaoVersion` `zentaoCompatible` VARCHAR( 100 ) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL;
 ALTER TABLE `zt_company` DROP `pms`;
+ALTER TABLE `zt_bug` ADD `plan` mediumint(8) unsigned NOT NULL DEFAULT '0' AFTER `project`;