diff --git a/pages/goods/goodsInfo/goodsInfo.js b/pages/goods/goodsInfo/goodsInfo.js
index dc61ce1..b24e93d 100644
--- a/pages/goods/goodsInfo/goodsInfo.js
+++ b/pages/goods/goodsInfo/goodsInfo.js
@@ -2689,12 +2689,15 @@ Page({
 
               //判断积分购库存
               if (!th.data.is_normal && th.data.prom_type == 4) {
-                var i_canbuy = th.data.prom_act.limitqty - th.data.prom_act.buy_num;
+                var i_canbuy = th.data.prom_act.limitqty - th.data.prom_act.buy_num;               
                 if (t > i_canbuy) {
                   wx.showToast({
                     title: '超出商品活动库存',
                     icon: 'none',
                   });
+                  th.setData({
+                    goodsInputNum: i_canbuy
+                  })
                   // s.my_warnning('超出商品活动库存', 0, th);
                   return false;
                 }