diff --git a/src/main/resources/mybatis/mapper/mail/mail-mapper.xml b/src/main/resources/mybatis/mapper/mail/mail-mapper.xml
index fb14d41..950b271 100644
--- a/src/main/resources/mybatis/mapper/mail/mail-mapper.xml
+++ b/src/main/resources/mybatis/mapper/mail/mail-mapper.xml
@@ -78,7 +78,7 @@
         FROM
             oa_mail_read_tag
         WHERE
-            id = # {id}
+            id = #{id}
         AND user_id = #{userId}
         LIMIT 1
     </select>