diff --git a/src/main/resources/mappers/estimate/estimateMapper.xml b/src/main/resources/mappers/estimate/estimateMapper.xml
index 2a9dd3e9..c08003ef 100644
--- a/src/main/resources/mappers/estimate/estimateMapper.xml
+++ b/src/main/resources/mappers/estimate/estimateMapper.xml
@@ -395,7 +395,7 @@
                             OR
                     (QCAST_CUST_PRD_ID IS NULL AND PC_ITEM_ID = PE.ITEM_ID)
                             OR
-                    (QCAST_CUST_PRD_ID IS NOT NULL AND QCAST_CUST_PRD_ID != PC_ITEM_ID AND PC_ITEM_ID = PE.ITEM_ID))), 0) AS MODULE_VOL_KW
+                    (QCAST_CUST_PRD_ID IS NOT NULL AND QCAST_CUST_PRD_ID != PC_ITEM_ID AND QCAST_CUST_PRD_ID = PE.ITEM_ID))), 0) AS MODULE_VOL_KW
             FROM T_PLAN P WITH (NOLOCK)
             INNER JOIN T_PART_ESTIMATE PE WITH (NOLOCK)
                 ON P.OBJECT_NO = PE.OBJECT_NO