diff --git a/app/controller/api/Coupon.php b/app/controller/api/Coupon.php
index 38cf832..3bc3255 100644
--- a/app/controller/api/Coupon.php
+++ b/app/controller/api/Coupon.php
@@ -96,9 +96,9 @@ class Coupon extends Base
                 //重置优惠券名称
                 if(isset($item->couponMain) && $item->couponMain){
                     $item->couponName =  $item->couponMain->name;
-                    $item->image_url =  $item->couponMain->image_url;
+                    $item->image_url = $this->request->domain() . $item->couponMain->image_url;
                 }else{
-                    $item->image_url =  '';
+                    $item->image_url = $this->request->domain() . '';
                 }
                 //是否已经打分过了
                 if(isset($item->scoreModel) && $item->scoreModel){