diff --git a/weixin-java-miniapp/src/main/java/cn/binarywang/wx/miniapp/bean/product/WxMinishopSpu.java b/weixin-java-miniapp/src/main/java/cn/binarywang/wx/miniapp/bean/product/WxMinishopSpu.java
index b6fe85284..8b18dc45a 100644
--- a/weixin-java-miniapp/src/main/java/cn/binarywang/wx/miniapp/bean/product/WxMinishopSpu.java
+++ b/weixin-java-miniapp/src/main/java/cn/binarywang/wx/miniapp/bean/product/WxMinishopSpu.java
@@ -9,6 +9,9 @@ import lombok.Data;
 public class WxMinishopSpu implements Serializable {
   private static final long serialVersionUID = 6689040014027161007L;
 
+  @SerializedName("product_id")
+  private String productId;
+
   @SerializedName("out_product_id")
   private String outProductId;