diff --git a/client/asset/dcr/dcr.go b/client/asset/dcr/dcr.go
index 6f3d25bf3b..6e7d28b9d3 100644
--- a/client/asset/dcr/dcr.go
+++ b/client/asset/dcr/dcr.go
@@ -1427,7 +1427,7 @@ func (dcr *ExchangeWallet) estimateSwap(lots, lotSize, feeSuggestion, maxFeeRate
 	avail := sumUTXOs(utxos)
 	reserves := dcr.reserves()
 
-	digestInputs := func() (reqFunds, maxFees, estHighFees, estLowFees uint64) {
+	digestInputs := func(inputsSize uint32) (reqFunds, maxFees, estHighFees, estLowFees uint64) {
 		// NOTE: reqFunds = val + fees, so change (extra) will be sum-reqFunds
 		reqFunds = calc.RequiredOrderFundsAlt(val, uint64(inputsSize), lots,
 			dexdcr.InitTxSizeBase, dexdcr.InitTxSize, bumpedMaxRate) // as in tryFund's enough func
@@ -1444,7 +1444,7 @@ func (dcr *ExchangeWallet) estimateSwap(lots, lotSize, feeSuggestion, maxFeeRate
 		return
 	}
 
-	reqFunds, maxFees, estHighFees, estLowFees := digestInputs()
+	reqFunds, maxFees, estHighFees, estLowFees := digestInputs(inputsSize)
 
 	// Math for split transactions is a little different.
 	if trySplit {
@@ -1476,7 +1476,7 @@ func (dcr *ExchangeWallet) estimateSwap(lots, lotSize, feeSuggestion, maxFeeRate
 		if err != nil { // no joy with the reduced set
 			return nil, false, 0, err
 		}
-		_, maxFees, estHighFees, estLowFees = digestInputs()
+		_, maxFees, estHighFees, estLowFees = digestInputs(inputsSize)
 	}
 
 	// No split transaction.