diff --git a/webapp/models/Hero.php b/webapp/models/Hero.php
index 5a0135c7..fc63068d 100644
--- a/webapp/models/Hero.php
+++ b/webapp/models/Hero.php
@@ -149,10 +149,10 @@ class Hero extends BaseModel {
             $newAttr = emptyReplace(json_decode($row['rand_attr'], true), array());
             $baseAttr = mt\Hero::getHeroAttr($heroMeta);
             mt\AttrHelper::mergeAttr($newAttr, $baseAttr);
-            $hp = $heroMeta['hp'] * (1 + mt\AttrHelper::getRateVal($newAttr, kHAT_Hp));
-            $speed = $heroMeta['move_speed'] * (1 + mt\AttrHelper::getRateVal($newAttr, kHAT_Speed));
-            $atk = $heroMeta['damage'] * (1 + mt\AttrHelper::getRateVal($newAttr, kHAT_Atk));
-            $def = $heroMeta['defence'] * (1 + mt\AttrHelper::getRateVal($newAttr, kHAT_Def));
+            $hp = $heroMeta['hp'] * (1 + mt\AttrHelper::getRateValEx($newAttr, kHAT_Hp));
+            $speed = $heroMeta['move_speed'] * (1 + mt\AttrHelper::getRateValEx($newAttr, kHAT_Speed));
+            $atk = $heroMeta['damage'] * (1 + mt\AttrHelper::getRateValEx($newAttr, kHAT_Atk));
+            $def = $heroMeta['defence'] * (1 + mt\AttrHelper::getRateValEx($newAttr, kHAT_Def));
             if ($qualityMeta) {
                 $hp = $hp * (1 + $qualityMeta['promote'] / 100.0);
             }
diff --git a/webapp/mt/AttrHelper.php b/webapp/mt/AttrHelper.php
index 8651add9..fdd6a321 100644
--- a/webapp/mt/AttrHelper.php
+++ b/webapp/mt/AttrHelper.php
@@ -94,4 +94,18 @@ class AttrHelper {
         return null;
     }
 
+    public static function getRateValEx($randAttr, $attrId, $defVal = 0)
+    {
+        if (!$randAttr) {
+            return $defVal;
+        }
+        foreach ($randAttr as $attr){
+            if ($attr['attr_id'] == $attrId &&
+                $attr['type'] == kHAT_RATE_VAL) {
+                return $attr['val'];
+            }
+        }
+        return $defVal;
+    }
+
 }