diff --git a/pages/goods/goodsInfo/goodsInfo.js b/pages/goods/goodsInfo/goodsInfo.js
index 21dbc81..00e38c7 100644
--- a/pages/goods/goodsInfo/goodsInfo.js
+++ b/pages/goods/goodsInfo/goodsInfo.js
@@ -3978,7 +3978,7 @@ Page({
                                         map.set(gd.goods_id, g_buy_num);
                                         th.setData({
                                             g_buy_num: map,
-                                            prom_buy_num: tt.data.data.goodsbuynum,
+                                            prom_buy_num: tt.data.data.promgoodsbuynum,
                                         });
                                         "function" == typeof func && func();
                                     }