diff --git a/app/dao/UserDao.php b/app/dao/UserDao.php
index 9cde2e9..2ee8dbb 100644
--- a/app/dao/UserDao.php
+++ b/app/dao/UserDao.php
@@ -136,7 +136,7 @@ class UserDao
         }
         UserReward::where('user_id',$user_id)->delete();
         Withdraw::where('user_id')->delete();
-        Signlog::where('user_id',$user_id)->delete();
+        Signlog::where('userid',$user_id)->delete();
         return 0;
     }
     /**