diff --git a/bonus-modules/bonus-material/src/main/resources/mapper/material/repair/RepairMapper.xml b/bonus-modules/bonus-material/src/main/resources/mapper/material/repair/RepairMapper.xml
index 44a7acfb..db492ee4 100644
--- a/bonus-modules/bonus-material/src/main/resources/mapper/material/repair/RepairMapper.xml
+++ b/bonus-modules/bonus-material/src/main/resources/mapper/material/repair/RepairMapper.xml
@@ -1168,7 +1168,7 @@
         update
             pa_person_storage
         set
-            part_num = part_num - #{partNum}
+            part_num = #{partNum}
         where
             id=#{id}
     </update>