diff --git a/cmd/siac/walletcmd.go b/cmd/siac/walletcmd.go
index e6be3d0583..3f58fb12d8 100644
--- a/cmd/siac/walletcmd.go
+++ b/cmd/siac/walletcmd.go
@@ -17,7 +17,6 @@ import (
 	"github.com/NebulousLabs/Sia/encoding"
 	"github.com/NebulousLabs/Sia/modules"
 	"github.com/NebulousLabs/Sia/modules/wallet"
-	"github.com/NebulousLabs/Sia/node/api"
 	"github.com/NebulousLabs/Sia/types"
 	"github.com/NebulousLabs/entropy-mnemonics"
 )
@@ -495,9 +494,7 @@ func walletsigncmd(txnJSON, toSignJSON string) {
 	}
 
 	// try API first
-	params, _ := json.Marshal(api.WalletSignPOSTParams{Transaction: txn, ToSign: toSign})
-	var wspr api.WalletSignPOSTResp
-	err = postResp("/wallet/sign", string(params), &wspr)
+	wspr, err := httpClient.WalletSignPost(txn, toSign)
 	if err == nil {
 		txn = wspr.Transaction
 	} else {