diff --git a/lib/address.js b/lib/address.js
index 264b9ef..ff1ffa9 100644
--- a/lib/address.js
+++ b/lib/address.js
@@ -3,8 +3,8 @@ var constants = require('./constants');
 var Hash = require('./hash');
 var Pubkey = require('./pubkey');
 
-function Address(hash, network, type) {
-  this.hash = hash;
+function Address(hashbuf, network, type) {
+  this.hashbuf = hashbuf;
   this.network = network;
   this.type = type;
 };
@@ -12,7 +12,7 @@ function Address(hash, network, type) {
 Address.prototype.fromPubkey = function(pubkey, network, compressed) {
   if (typeof compressed === 'undefined')
     compressed = true;
-  this.hash = Hash.sha256ripemd160(pubkey.toDER(compressed));
+  this.hashbuf = Hash.sha256ripemd160(pubkey.toDER(compressed));
   this.network = network || 'mainnet';
   this.type = 'pubkeyhash';
   return this;
@@ -40,7 +40,7 @@ Address.prototype.fromString = function(str) {
     this.type = 'unknown';
   }
 
-  this.hash = buf.slice(1);
+  this.hashbuf = buf.slice(1);
 }
 
 Address.prototype.isValid = function() {
@@ -54,7 +54,7 @@ Address.prototype.isValid = function() {
 
 Address.prototype.toBuffer = function() {
   version = new Buffer([constants[this.network][this.type]]);
-  var buf = Buffer.concat([version, this.hash]);
+  var buf = Buffer.concat([version, this.hashbuf]);
   return buf;
 };
 
@@ -63,7 +63,7 @@ Address.prototype.toString = function() {
 };
 
 Address.prototype.validate = function() {
-  if (!Buffer.isBuffer(this.hash) || this.hash.length !== 20)
+  if (!Buffer.isBuffer(this.hashbuf) || this.hashbuf.length !== 20)
     throw new Error('hash must be a buffer of 20 bytes');
   if (this.network !== 'mainnet' && this.network !== 'testnet')
     throw new Error('network must be "mainnet" or "testnet"');