diff --git a/src/main/resources/mapper/PrivilageUserShopRelationDOMapper.xml b/src/main/resources/mapper/PrivilageUserShopRelationDOMapper.xml
index 7d4f812..a4d57d8 100644
--- a/src/main/resources/mapper/PrivilageUserShopRelationDOMapper.xml
+++ b/src/main/resources/mapper/PrivilageUserShopRelationDOMapper.xml
@@ -67,7 +67,7 @@
     </select>
 
     <select id="selectUserNameById" resultType="java.lang.String">
-        select t5.name from poi_store_staff t4,
+        select IFNULL(t5.name, '') from poi_store_staff t4,
                             privilage_user t5 where  t4.user_id = t5.id and t4.id  = #{id}
 
     </select>