diff --git a/lib/bcoin/coin.js b/lib/bcoin/coin.js
index 30aa98cf..1c9bf938 100644
--- a/lib/bcoin/coin.js
+++ b/lib/bcoin/coin.js
@@ -164,15 +164,18 @@ Coin.prototype.toJSON = function toJSON() {
  */
 
 Coin.fromJSON = function fromJSON(json) {
-  return Coin.fromOptions({
-    version: json.version,
-    height: json.height,
-    value: utils.satoshi(json.value),
-    script: bcoin.script.fromRaw(new Buffer(json.script, 'hex')),
-    coinbase: json.coinbase,
-    hash: json.hash ? utils.revHex(json.hash) : null,
-    index: json.index
-  });
+  return new Coin().fromJSON(json);
+};
+
+Coin.prototype.fromJSON = function fromJSON(json) {
+  this.version = json.version;
+  this.height = json.height;
+  this.value = utils.satoshi(json.value);
+  this.script = bcoin.script.fromRaw(new Buffer(json.script, 'hex'));
+  this.coinbase = json.coinbase;
+  this.hash = json.hash ? utils.revHex(json.hash) : null;
+  this.index = json.index;
+  return this;
 };
 
 /**
diff --git a/lib/bcoin/input.js b/lib/bcoin/input.js
index 1953186a..3fcb2405 100644
--- a/lib/bcoin/input.js
+++ b/lib/bcoin/input.js
@@ -108,9 +108,7 @@ Outpoint.prototype.inspect = function inspect() {
  * @constructor
  * @param {NakedInput} options
  * @param {Boolean?} mutable
- * @property {Object} prevout - Outpoint.
- * @property {Hash} prevout.hash - Previous transaction hash.
- * @property {Number} prevout.index - Previous output index.
+ * @property {Outpoint} prevout - Outpoint.
  * @property {Script} script - Input script / scriptSig.
  * @property {Number} sequence - nSequence.
  * @property {Witness} witness - Witness (empty if not present).