diff --git a/packageE/pages/cart/cart2/cart2.js b/packageE/pages/cart/cart2/cart2.js
index 612a18a..2b9e940 100644
--- a/packageE/pages/cart/cart2/cart2.js
+++ b/packageE/pages/cart/cart2/cart2.js
@@ -2351,7 +2351,7 @@ Page({
       var order_m = 0;
 
       //么有使用券，或者活动没有限制使用优惠券
-      if((quan_price <= 0 || !ord_prom.is_xz_yh) && ord_prom){
+      if(ord_prom && (quan_price <= 0 || !ord_prom.is_xz_yh)){
         order_prom_id = ord_prom['id'];
         switch (ord_prom['type']) {
           case 0: