diff --git a/webapp/controller/BaseAuthedController.class.php b/webapp/controller/BaseAuthedController.class.php
index 7a74c7aa..3547f095 100644
--- a/webapp/controller/BaseAuthedController.class.php
+++ b/webapp/controller/BaseAuthedController.class.php
@@ -51,7 +51,7 @@ class BaseAuthedController extends BaseController {
     {
         $r = $this->_getRedis($this->_getAccountId());
         $r->set(LAST_SESSION_KEY . $this->_getAccountId(), $sessionId);
-        $r->pexpire(LAST_SESSION_KEY . $this->_getAccountId(), 3600 * 24);
+        $r->pexpire(LAST_SESSION_KEY . $this->_getAccountId(), 1000 * 3600 * 24);
     }
 
     public function _getAccountId()