diff --git a/bonus-system/src/main/resources/mapper/system/KyDataClassifyMapper.xml b/bonus-system/src/main/resources/mapper/system/KyDataClassifyMapper.xml
index 46f82ad..4c393ab 100644
--- a/bonus-system/src/main/resources/mapper/system/KyDataClassifyMapper.xml
+++ b/bonus-system/src/main/resources/mapper/system/KyDataClassifyMapper.xml
@@ -43,7 +43,7 @@ PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
         <if test="dataTypeName!=null">
             and data_type_name  LIKE CONCAT('%', #{dataTypeName}, '%')
         </if>
-        order by create_time desc
+        order by dkdc.create_time desc
     </select>
     <select id="listAll" resultType="com.bonus.system.domain.KyDataClassify">
         select id,data_type_name