diff --git a/webapp/controller/HeroController.class.php b/webapp/controller/HeroController.class.php
index 136d5227..baffcff5 100644
--- a/webapp/controller/HeroController.class.php
+++ b/webapp/controller/HeroController.class.php
@@ -215,9 +215,9 @@ class HeroController extends BaseAuthedController {
                 $this->_rspErr(1, 'hero does not exist');
                 return;
             }
-            $costHeroUniId = $this->_getV(TN_HERO_QUALITY_UP, (int)$idx * 100);
+            $costHeroUniId = $this->_getV(TN_HERO_QUALITY_UP, (int)$idx + 1000);
             $this->_setV(TN_HERO_QUALITY_UP, $idx, 0);
-            $this->_setV(TN_HERO_QUALITY_UP, (int)$idx * 100, 0);
+            $this->_setV(TN_HERO_QUALITY_UP, (int)$idx + 1000, 0);
             $propertyChgService = new services\PropertyChgService();
             $propertyChgService->addHeroChg();
             $propertyChgService->addBagChg();
@@ -523,7 +523,7 @@ class HeroController extends BaseAuthedController {
                      )
         );
         $this->_setV(TN_HERO_QUALITY_UP, (int)$slotId, (int)$heroDb['idx']);
-        $this->_setV(TN_HERO_QUALITY_UP, (int)$slotId * 100, (int)$costHeroDb['idx']);
+        $this->_setV(TN_HERO_QUALITY_UP, (int)$slotId + 1000, (int)$costHeroDb['idx']);
         $propertyChgService = new services\PropertyChgService();
         $propertyChgService->addHeroChg();
         $propertyChgService->addBagChg();