diff --git a/wallet/txauthor/author.go b/wallet/txauthor/author.go
index 18f996c..34449b5 100644
--- a/wallet/txauthor/author.go
+++ b/wallet/txauthor/author.go
@@ -133,7 +133,7 @@ func NewUnsignedTransaction(outputs []*wire.TxOut, relayFeePerKb btcutil.Amount,
 		changeIndex := -1
 		changeAmount := inputAmount - targetAmount - maxRequiredFee
 		if changeAmount != 0 && !txrules.IsDustAmount(changeAmount,
-			txsizes.P2WPKHPkScriptSize, relayFeePerKb) {
+			txsizes.P2WPKHPkScriptSize, txrules.DefaultRelayFeePerKb) {
 			changeScript, err := fetchChange()
 			if err != nil {
 				return nil, err