diff --git a/webapp/controller/HeroSkinController.class.php b/webapp/controller/HeroSkinController.class.php
index ba973881..c5a451ae 100644
--- a/webapp/controller/HeroSkinController.class.php
+++ b/webapp/controller/HeroSkinController.class.php
@@ -227,7 +227,7 @@ class HeroSkinController extends BaseAuthedController {
         }
         $propertyChgService->addHeroSkinChg();
 //        $this->_incPeriodV(TN_HASH_RATE_SYN_SKIN_TIMES, 0, $number);
-        myself()->_fireEvent('Upgrade','onSkinSyn',$number);
+        myself()->_fireEvent('Synthesis','onSkinSyn',$number);
         $event = array(
             'ID' => 'heroSkin',
             'SUB_ID' => 'synthesis',