diff --git a/app/Service/ServiceTrait/Api/OrderTrait.php b/app/Service/ServiceTrait/Api/OrderTrait.php
index 868d432..32e4cdf 100644
--- a/app/Service/ServiceTrait/Api/OrderTrait.php
+++ b/app/Service/ServiceTrait/Api/OrderTrait.php
@@ -419,7 +419,7 @@ trait OrderTrait
 //            min($this->orderRes['coupon']['amount'], $this->orderRes['good_after_discount_price']) :
 //            $this->orderRes['coupon']['amount'];
 //        $this->orderRes['good_after_discount_price'] = bcsub((string)$this->orderRes['good_after_discount_price'],(string)$this->orderRes['favorable_good_price'],2);
-        $this->orderRes['discount_price'] = min($this->orderRes['coupon']['amount'],$this->orderRes['coupon']['actual_price']);
+        $this->orderRes['discount_price'] = min($this->orderRes['coupon']['amount'],$this->orderRes['actual_price']);
         $this->orderRes['actual_price'] = bcsub((string)$this->orderRes['actual_price'],(string)$this->orderRes['discount_price'],2);
     }