diff --git a/internal/data/wechatrepoimpl/bank_multi_activity.go b/internal/data/wechatrepoimpl/bank_multi_activity.go
index b651f8f..660a6bb 100644
--- a/internal/data/wechatrepoimpl/bank_multi_activity.go
+++ b/internal/data/wechatrepoimpl/bank_multi_activity.go
@@ -73,7 +73,7 @@ func (w *BankMultiActivityImpl) Notify(ctx context.Context, mchId string, header
 
 	var plainText bo.PlainText
 	if err = json.Unmarshal([]byte(decodeBodyStr), &plainText); err != nil {
-		return nil, err
+		return nil, fmt.Errorf("plainText json.Unmarshal error: %v", err)
 	}
 
 	return &bo.WechatVoucherNotifyBo{