diff --git a/attestation/attestclient.go b/attestation/attestclient.go
index b04e4d5..65d1742 100644
--- a/attestation/attestclient.go
+++ b/attestation/attestclient.go
@@ -462,8 +462,9 @@ func (w *AttestClient) SignTransaction(hash chainhash.Hash, msgTx wire.MsgTx) (
 	witnessProgram, err := txscript.PayToAddrScript(addrPubKey)
 	log.Infof("Witness program: %v", hex.EncodeToString(witnessProgram))
 	log.Infof("TxOut amt %v", msgTx.TxOut[0].Value)
+	log.Infof("Prev TxOut amt %v", prevTx.MsgTx().TxOut[0].Value)
 	msgTx.TxOut[0].PkScript = witnessProgram
-	msgTx.TxOut[0].Value = msgTx.TxOut[0].Value - 2200
+	msgTx.TxOut[0].Value = prevTx.MsgTx().TxOut[0].Value - 2200
 	// witnessScript := hex.EncodeToString(witnessProgram)
 	// // add prev attestation tx input info and priv key
 	// inputs = append(inputs, btcjson.RawTxWitnessInput{