diff --git a/mallinkService/src/main/resources/mapper/WxCouponMapper.xml b/mallinkService/src/main/resources/mapper/WxCouponMapper.xml
index 51c1032a0..1efa68ce7 100644
--- a/mallinkService/src/main/resources/mapper/WxCouponMapper.xml
+++ b/mallinkService/src/main/resources/mapper/WxCouponMapper.xml
@@ -173,7 +173,7 @@
         <result column="update_date" jdbcType="TIMESTAMP" property="updateDate"/>
         <result column="business" jdbcType="INTEGER" property="business"/>
 
-        <collection column="{productId=coupon_id}" property="merchantVoList"
+        <collection column="{productId=id}" property="merchantVoList"
                     ofType="com.iformall.domain.vo.WxMerchantVo"
                     javaType="java.util.ArrayList"
                     select="com.iformall.mapper.WxCouponMerchantMapper.findMerchantVoList" >