diff --git a/src/main/resources/mapper/lease/LeaseOrderMiningMapper.xml b/src/main/resources/mapper/lease/LeaseOrderMiningMapper.xml
index 53a00a8..51e38d4 100644
--- a/src/main/resources/mapper/lease/LeaseOrderMiningMapper.xml
+++ b/src/main/resources/mapper/lease/LeaseOrderMiningMapper.xml
@@ -107,6 +107,7 @@
         datetime,
         hashrate,
         miner,
+        unit,
         ROW_NUMBER() OVER(PARTITION BY miner ORDER BY datetime DESC) as rn
         FROM `${pool}`
         WHERE wallet = #{wallet}