diff --git a/pkg/source/limitorder/pool_simulator.go b/pkg/source/limitorder/pool_simulator.go
index 15a5df178..c82162adb 100644
--- a/pkg/source/limitorder/pool_simulator.go
+++ b/pkg/source/limitorder/pool_simulator.go
@@ -215,7 +215,6 @@ func (p *PoolSimulator) calcAmountWithSwapInfo(swapSide SwapSide, tokenAmountIn
 		SwapSide:     swapSide,
 		AmountIn:     tokenAmountIn.Amount.String(),
 	}
-	totalFilledTakingAmountWei := big.NewInt(0)
 	isFulfillAmountIn := false
 	totalFeeAmountWei := new(big.Int)
 
@@ -277,7 +276,6 @@ func (p *PoolSimulator) calcAmountWithSwapInfo(swapSide SwapSide, tokenAmountIn
 			swapInfo.FilledOrders = append(swapInfo.FilledOrders, filledOrderInfo)
 			isFulfillAmountIn = true
 			addFilledMakingAmount(filledMakingAmountByMaker, order.Maker, filledMakingAmountWei)
-			totalFilledTakingAmountWei.Add(totalFilledTakingAmountWei, filledTakingAmountWei)
 
 			// Currently, when Aggregator finds route and returns some orders and sends them to the smart contract to execute.
 			// We will often meet edge cases that these orders can be fulfilled by a trading bot or taker on Aggregator.
@@ -320,12 +318,10 @@ func (p *PoolSimulator) calcAmountWithSwapInfo(swapSide SwapSide, tokenAmountIn
 		filledOrderInfo := newFilledOrderInfo(order, remainingTakingAmountWei.String(), remainingMakingAmountWei.String(), feeAmountWeiByOrder.String())
 		swapInfo.FilledOrders = append(swapInfo.FilledOrders, filledOrderInfo)
 		addFilledMakingAmount(filledMakingAmountByMaker, order.Maker, remainingMakingAmountWei)
-		totalFilledTakingAmountWei.Add(totalFilledTakingAmountWei, remainingTakingAmountWei)
 	}
 	if !isFulfillAmountIn {
 		return nil, SwapInfo{}, nil, ErrCannotFulfillAmountIn
 	}
-	swapInfo.AmountIn = totalFilledTakingAmountWei.String()
 	return totalAmountOutWei, swapInfo, totalFeeAmountWei, nil
 }
 
diff --git a/pkg/source/limitorder/pool_simulator_test.go b/pkg/source/limitorder/pool_simulator_test.go
index 976ba6a24..a99b88a60 100644
--- a/pkg/source/limitorder/pool_simulator_test.go
+++ b/pkg/source/limitorder/pool_simulator_test.go
@@ -971,7 +971,6 @@ func TestPool_CalcAmountOut_v2(t *testing.T) {
 			assert.Equal(t, tc.expAmountOut, res.TokenAmountOut.Amount.String())
 
 			si := res.SwapInfo.(SwapInfo)
-			assert.Equal(t, bignumber.NewBig10(tc.amountIn), bignumber.NewBig10(si.AmountIn))
 			oid := make([]int64, 0, len(si.FilledOrders))
 			oinfo := ""
 			for _, o := range si.FilledOrders {
@@ -1080,7 +1079,6 @@ func TestPool_UpdateBalance(t *testing.T) {
 				assert.Equal(t, swap.expAmountOut, res.TokenAmountOut.Amount.String())
 
 				si := res.SwapInfo.(SwapInfo)
-				assert.Equal(t, bignumber.NewBig10(swap.amountIn), bignumber.NewBig10(si.AmountIn))
 				oid := make([]int64, 0, len(si.FilledOrders))
 				oinfo := ""
 				for _, o := range si.FilledOrders {
@@ -1231,7 +1229,6 @@ func TestPool_Inventory(t *testing.T) {
 				assert.Equal(t, swap.expAmountOut, res.TokenAmountOut.Amount.String())
 
 				si := res.SwapInfo.(SwapInfo)
-				assert.Equal(t, bignumber.NewBig10(swap.amountIn), bignumber.NewBig10(si.AmountIn))
 				oid := make([]int64, 0, len(si.FilledOrders))
 				oinfo := ""
 				for _, o := range si.FilledOrders {
@@ -1366,7 +1363,6 @@ func TestPool_CalcAmountOut_TakerAssetFee(t *testing.T) {
 			}
 			assert.Equal(t, tc.expOrderIds, oid, oinfo)
 			fmt.Println(oinfo)
-			fmt.Println("--", si.AmountIn)
 		})
 	}
 }