diff --git a/lib/block/block.js b/lib/block/block.js
index eb3246e..341d627 100644
--- a/lib/block/block.js
+++ b/lib/block/block.js
@@ -277,7 +277,7 @@ Block.prototype._getHash = function() {
 
 var idProperty = {
   configurable: false,
-  writeable: false,
+  enumerable: true,
   /**
    * @returns {string} - The big endian hash buffer of the header
    */
diff --git a/lib/block/blockheader.js b/lib/block/blockheader.js
index c3280e3..722d7a8 100644
--- a/lib/block/blockheader.js
+++ b/lib/block/blockheader.js
@@ -233,7 +233,6 @@ BlockHeader.prototype._getHash = function hash() {
 
 var idProperty = {
   configurable: false,
-  writeable: false,
   enumerable: true,
   /**
    * @returns {string} - The big endian hash buffer of the header
diff --git a/lib/transaction/input/input.js b/lib/transaction/input/input.js
index 6cbffc6..ad77212 100644
--- a/lib/transaction/input/input.js
+++ b/lib/transaction/input/input.js
@@ -27,7 +27,6 @@ Input.DEFAULT_SEQNUMBER = DEFAULT_SEQNUMBER;
 
 Object.defineProperty(Input.prototype, 'script', {
   configurable: false,
-  writeable: false,
   enumerable: true,
   get: function() {
     if (this.isNull()) {
diff --git a/lib/transaction/output.js b/lib/transaction/output.js
index e5fde4c..963d1cc 100644
--- a/lib/transaction/output.js
+++ b/lib/transaction/output.js
@@ -26,7 +26,6 @@ function Output(params) {
 
 Object.defineProperty(Output.prototype, 'script', {
   configurable: false,
-  writeable: false,
   enumerable: true,
   get: function() {
     if (!this._script) {
@@ -46,7 +45,6 @@ Object.defineProperty(Output.prototype, 'script', {
 
 Object.defineProperty(Output.prototype, 'satoshis', {
   configurable: false,
-  writeable: true,
   enumerable: true,
   get: function() {
     return this._satoshis;
diff --git a/lib/transaction/transaction.js b/lib/transaction/transaction.js
index 3a231a1..bdfd458 100644
--- a/lib/transaction/transaction.js
+++ b/lib/transaction/transaction.js
@@ -99,7 +99,6 @@ Transaction.shallowCopy = function(transaction) {
 
 var hashProperty = {
   configurable: false,
-  writeable: false,
   enumerable: true,
   get: function() {
     return new BufferReader(this._getHash()).readReverse().toString('hex');
@@ -110,7 +109,6 @@ Object.defineProperty(Transaction.prototype, 'id', hashProperty);
 
 var ioProperty = {
   configurable: false,
-  writeable: false,
   enumerable: true,
   get: function() {
     return this._getInputAmount();