diff --git a/app/common/dao/community/CommunityDao.php b/app/common/dao/community/CommunityDao.php
index 1590eed8..23ca764d 100644
--- a/app/common/dao/community/CommunityDao.php
+++ b/app/common/dao/community/CommunityDao.php
@@ -31,8 +31,8 @@ class CommunityDao extends BaseDao
     {
         $query = Community::hasWhere('author', function($query) use ($where){
             $query->when(isset($where['username']) && $where['username'] !==  '', function ($query) use($where) {
-                $merId = Db::name('merchant')->where('mer_name', $where['username'])->value('mer_id', -1);
-                $query->where('uid', $merId);
+                $uid = Db::name('merchant')->where('mer_name', $where['username'])->value('uid', -1);
+                $query->where('uid', $uid);
             });
             $query->where(true);
         });