diff --git a/transaction.go b/transaction.go
index 794c66c..90950cc 100644
--- a/transaction.go
+++ b/transaction.go
@@ -147,7 +147,7 @@ func (tx *Transaction) Verify(prevTXs map[string]Transaction) bool {
 		txCopy.Vin[inID].Signature = nil
 		txCopy.Vin[inID].PubKey = prevTx.Vout[vin.Vout].PubKeyHash
 		txCopy.ID = txCopy.Hash()
-		txCopy.Vin[inID].PubKey = []byte{}
+		txCopy.Vin[inID].PubKey = nil
 
 		r := big.Int{}
 		s := big.Int{}