diff --git a/accounts/usbwallet/ledger.go b/accounts/usbwallet/ledger.go
index a8a8d430295d4..56fc31f497eeb 100644
--- a/accounts/usbwallet/ledger.go
+++ b/accounts/usbwallet/ledger.go
@@ -353,7 +353,7 @@ func (w *ledgerDriver) ledgerSign(derivationPath []uint32, tx *types.Transaction
 		signer = new(types.HomesteadSigner)
 	} else {
 		signer = types.NewEIP155Signer(chainID)
-		signature[crypto.RecoveryIDOffset] = signature[crypto.RecoveryIDOffset] - byte(chainID.Uint64()*2+35)
+		signature[crypto.RecoveryIDOffset] -= byte(chainID.Uint64()*2+35)
 	}
 	signed, err := tx.WithSignature(signer, signature)
 	if err != nil {
diff --git a/accounts/usbwallet/trezor.go b/accounts/usbwallet/trezor.go
index 8bc51bb83538d..cd8f3d45163eb 100644
--- a/accounts/usbwallet/trezor.go
+++ b/accounts/usbwallet/trezor.go
@@ -223,7 +223,7 @@ func (w *trezorDriver) trezorSign(derivationPath []uint32, tx *types.Transaction
 	} else {
 		// Trezor backend does not support typed transactions yet.
 		signer = types.NewEIP155Signer(chainID)
-		signature[crypto.RecoveryIDOffset] = signature[crypto.RecoveryIDOffset] - byte(chainID.Uint64()*2+35)
+		signature[crypto.RecoveryIDOffset] -= byte(chainID.Uint64()*2+35)
 	}
 
 	// Inject the final signature into the transaction and sanity check the sender