diff --git a/app/common/dao/store/StoreActivityUserDao.php b/app/common/dao/store/StoreActivityUserDao.php
index 3f1b9361..9fa1d800 100755
--- a/app/common/dao/store/StoreActivityUserDao.php
+++ b/app/common/dao/store/StoreActivityUserDao.php
@@ -112,7 +112,7 @@ class StoreActivityUserDao extends BaseDao
         $default = StoreActivityUser::where('user_id', $userId)->where('activity_id', $activityId)->where('status', 1)->find();
         if (empty($default)) {
             $couponId = StoreConsumption::where('type', StoreConsumption::TYPE_OWNER_CONSUMPTION)->value('coupon_id');
-            $default - new StoreActivityUser();
+            $default = new StoreActivityUser();
             $default->user_id = $userId;
             $default->activity_id = $activityId;
             $default->value = $couponId;