diff --git a/js/models/core/PrivateKey.js b/js/models/core/PrivateKey.js
index 110dca65b..f1cee7f48 100644
--- a/js/models/core/PrivateKey.js
+++ b/js/models/core/PrivateKey.js
@@ -7,7 +7,7 @@ var HK       = bitcore.HierarchicalKey;
 var WalletKey   = bitcore.WalletKey;
 var networks    = bitcore.networks;
 var util        = bitcore.util;
-var PublicKeyRing  = require('./PublicKeyRing');
+var PublicKeyRing = require('./PublicKeyRing');
 
 function PrivateKey(opts) {
   opts = opts || {};
@@ -62,6 +62,7 @@ PrivateKey.prototype._getHK = function(path) {
 };
 
 PrivateKey.prototype.get = function(index,isChange) {
+  console.log(PublicKeyRing);
   var path = PublicKeyRing.FullBranch(index, isChange);
   var pk = this.privateKeyCache[path];
   if (!pk) {
diff --git a/js/models/core/PublicKeyRing.js b/js/models/core/PublicKeyRing.js
index 76edc40e1..2dd7e62ba 100644
--- a/js/models/core/PublicKeyRing.js
+++ b/js/models/core/PublicKeyRing.js
@@ -5,6 +5,7 @@
 var imports     = require('soop').imports();
 var bitcore     = require('bitcore');
 var HK          = bitcore.HierarchicalKey;
+var PrivateKey  = require('./PrivateKey');
 var Address     = bitcore.Address;
 var Script      = bitcore.Script;
 var coinUtil    = bitcore.util;
@@ -127,7 +128,8 @@ PublicKeyRing.prototype._checkKeys = function() {
 };
 
 PublicKeyRing.prototype._newExtendedPublicKey = function () {
-  return new HK(this.network.name)
+  return new PrivateKey({networkName: this.network.name})
+    .deriveBIP45Branch()
     .extendedPublicKeyString();
 };
 
diff --git a/test/test.TxProposals.js b/test/test.TxProposals.js
index 1d76b1bae..41ecc2002 100644
--- a/test/test.TxProposals.js
+++ b/test/test.TxProposals.js
@@ -42,7 +42,7 @@ var createPKR = function (bip32s) {
   for(var i=0; i<5; i++) {
     if (bip32s) {
       var b=bip32s[i];
-      w.addCopayer(b?b.getExtendedPublicKeyString():null);
+      w.addCopayer(b?b.deriveBIP45Branch().extendedPublicKeyString():null);
     }
     else 
       w.addCopayer();
@@ -72,7 +72,7 @@ describe('TxProposals model', function() {
     var priv = new PrivateKey(config);
     var priv2 = new PrivateKey(config);
     var priv3 = new PrivateKey(config);
-   var ts = Date.now();
+    var ts = Date.now();
     var isChange=0; 
     var index=0; 
     var pkr = createPKR([priv, priv2,  priv3]);
diff --git a/test/test.Wallet.js b/test/test.Wallet.js
index 53a235fe9..fd1c2fe50 100644
--- a/test/test.Wallet.js
+++ b/test/test.Wallet.js
@@ -132,6 +132,7 @@ describe('Wallet model', function() {
     );
 
     var t = w.txProposals;
+    console.log(t);
     var k = Object.keys(t.txps)[0];
     var tx = t.txps[k].builder.build();
     should.exist(tx);