diff --git a/webapp/controller/MailController.class.php b/webapp/controller/MailController.class.php
index 8da7680..ab38e57 100644
--- a/webapp/controller/MailController.class.php
+++ b/webapp/controller/MailController.class.php
@@ -265,7 +265,7 @@ class MailController
                 $mailidlist = $mailidlist . '0)';
                 $ret = $conn->execScript(
                     'UPDATE t_inbox SET state=:state, modifytime=:modify_time ' .
-                        ' WHERE accountid=:account_id AND mail_id IN '.$mailidlist.';',
+                        ' WHERE account_id=:account_id AND mail_id IN '.$mailidlist.';',
                     array(
                         ':account_id' => $account_id,
                         ':state' => $act,