diff --git a/rule/block_star_chain_settlement.go b/rule/block_star_chain_settlement.go
index 395bed9..dcc4d79 100644
--- a/rule/block_star_chain_settlement.go
+++ b/rule/block_star_chain_settlement.go
@@ -241,7 +241,7 @@ func statisticsAndDistributeCoinForStatic(session *xorm.Session, userIds []int,
 			getCoin = getCoin.Sub(tempCoin)
 			needDestroyContribution = coinAmountValue
 		}
-		unassignedTotalCoin.Add(getCoin)
+		unassignedTotalCoin = unassignedTotalCoin.Add(getCoin)
 
 		//3.2给相应用户加上分配到的虚拟币
 		err = DealUserCoin(session, md.DealUserCoinReq{
@@ -327,7 +327,7 @@ func statisticsAndDistributeCoinForDynamic(session *xorm.Session, userIds []int,
 			getCoin = getCoin.Sub(tempCoin)
 			needDestroyContribution = coinAmountValue
 		}
-		unassignedTotalCoin.Add(getCoin)
+		unassignedTotalCoin = unassignedTotalCoin.Add(getCoin)
 
 		//3.2给相应用户加上分配到的虚拟币
 		err = DealUserCoin(session, md.DealUserCoinReq{
@@ -413,7 +413,7 @@ func statisticsAndDistributeCoinForOperationCenter(session *xorm.Session, mid st
 				singleValue = singleValue.Sub(tempCoin)
 				needDestroyContribution = coinAmountValue
 			}
-			totalCoin.Add(singleValue)
+			totalCoin = totalCoin.Add(singleValue)
 			//3.2给相应用户加上分配到的虚拟币
 			err = DealUserCoin(session, md.DealUserCoinReq{
 				Kind:         "add",
@@ -505,7 +505,7 @@ func statisticsAndDistributeCoinForOther(session *xorm.Session, mid string, publ
 					singleValue = singleValue.Sub(tempCoin)
 					needDestroyContribution = coinAmountValue
 				}
-				totalCoin.Add(singleValue)
+				totalCoin = totalCoin.Add(singleValue)
 				//3.2给相应用户加上分配到的虚拟币
 				err = DealUserCoin(session, md.DealUserCoinReq{
 					Kind:         "add",