diff --git a/webapp/controller/HeroController.class.php b/webapp/controller/HeroController.class.php
index 85f8aaae..e790f9b8 100644
--- a/webapp/controller/HeroController.class.php
+++ b/webapp/controller/HeroController.class.php
@@ -172,6 +172,8 @@ class HeroController extends BaseAuthedController {
             $currLevelMeta = mt\HeroLevel::getByLevel($heroDb['hero_lv']);
             if ($currLevelMeta) {
                 $nextLevelMeta = mt\HeroLevel::getByLevel($heroDb['hero_lv'] + 1);
+                $attrs = $heroDto['attr'];
+                mt\HeroLevelAttr::addRandAttr($heroDb['hero_lv'] + 1, $attrs);
                 if ($nextLevelMeta) {
                     Hero::update($heroUniId,
                                  array(