diff --git a/src/main/resources/mappers/basic/TbThreeSpanMapper.xml b/src/main/resources/mappers/basic/TbThreeSpanMapper.xml
index ec66bec..56bba2f 100644
--- a/src/main/resources/mappers/basic/TbThreeSpanMapper.xml
+++ b/src/main/resources/mappers/basic/TbThreeSpanMapper.xml
@@ -71,7 +71,7 @@
         tts.tower_spacing as towerSpacing,tts.highway_width as highwayWidth
         from tb_three_span tts
         left join tb_tower tt on tts.tower_id = tt.id
-        left join tb_tower tt2 on tts.next_tower_id = tt.id
+        left join tb_tower tt2 on tts.next_tower_id = tt2.id
         where tts.pro_id = #{proId} and tts.is_active = '1'
         <if test="keyWord != '' and keyWord != null">
             and (tt.tower_name like concat('%',#{keyWord},'%') or