diff --git a/webapp/controller/RankingController.class.php b/webapp/controller/RankingController.class.php
index a76ca3e0..db3d1660 100644
--- a/webapp/controller/RankingController.class.php
+++ b/webapp/controller/RankingController.class.php
@@ -16,15 +16,15 @@ class RankingController extends BaseAuthedController {
         $type = getReqVal('type', 0);
         $userList = array();
         {
-            SqlHelper::ormSelect(
-                myself()->_getSelfMysql(),
-                't_user',
+            $rows = myself()->_getSelfMysql()->execQuery(
+                'SELECT * FROM t_user ' .
+                "LIMIT 50",
                 array(
-                ),
-                function ($row) use(&$userList) {
-                    array_push($userList, User::info($row));
-                }
+                )
             );
+            foreach ($rows as $row) {
+                array_push($userList, User::info($row));
+            }
         }
         $rankingList = array();
         $ranked = 1;