diff --git a/sgzb-modules/sgzb-base/src/main/resources/mapper/app/BackApplyMapper.xml b/sgzb-modules/sgzb-base/src/main/resources/mapper/app/BackApplyMapper.xml
index 0607fff8..7c5a76f1 100644
--- a/sgzb-modules/sgzb-base/src/main/resources/mapper/app/BackApplyMapper.xml
+++ b/sgzb-modules/sgzb-base/src/main/resources/mapper/app/BackApplyMapper.xml
@@ -496,15 +496,13 @@
     SELECT
       mt.type_name typeCode,
       CONCAT_WS('/',  IFNULL(mt2.type_name, '')) AS typeName,
-      bad.pre_num as num,
-      mm.ma_code as maCode
+      bad.pre_num as num
     FROM
       back_apply_details bad
         LEFT JOIN back_apply_info bai on bai.id=bad.parent_id
         LEFT JOIN ma_type mt on mt.type_id=bad.type_id
         LEFT JOIN ma_type mt1 ON mt1.type_id=bad.type_id
         LEFT JOIN ma_type mt2 ON mt2.type_id=mt1.parent_id
-        LEFT JOIN ma_machine mm on mm.type_id=bad.type_id
     WHERE
       bai.id=#{id}
   </select>