错误1064尝试创建新触发器

Question

我正在尝试在删除时创建一个mysql触发器，以便在历史记录表上写一条记录，但每次我都会收到错误：

#1064 - You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '' at line 14 


DELIMITER $$

USE `cedecapr_test`$$


    CREATE
    DEFINER=`root`@`localhost`
    TRIGGER `mytable`.`users_delete`
    BEFORE DELETE ON `mytable`.`users`
    FOR EACH ROW
    BEGIN
         INSERT INTO `history_table_users`                 
         VALUES
         (          

              OLD.`username`
              );

    END$$

任何帮助将不胜感激。谢谢。