diff --git a/lib/bcoin/tx.js b/lib/bcoin/tx.js
index e89a1509..4ca925f3 100644
--- a/lib/bcoin/tx.js
+++ b/lib/bcoin/tx.js
@@ -61,6 +61,7 @@ function TX(data, block) {
     }
   }
 
+  this._unspent = data._unspent || null;
   this.hardFee = data.hardFee || null;
   this.changeAddress = data.changeAddress || null;
   this.changeIndex = data.changeIndex != null ? data.changeIndex : -1;
@@ -948,7 +949,7 @@ TX.prototype.fillUnspent = function fillUnspent(unspent, address, fee) {
   var result;
 
   if (unspent)
-    this.unspent = unspent;
+    this._unspent = unspent;
 
   if (address)
     this.changeAddress = address;
@@ -958,7 +959,7 @@ TX.prototype.fillUnspent = function fillUnspent(unspent, address, fee) {
 
   assert(this.changeAddress);
 
-  result = this.getUnspent(this.unspent, this.changeAddress, this.hardFee);
+  result = this.getUnspent(this._unspent, this.changeAddress, this.hardFee);
 
   if (!result.inputs)
     return result;
@@ -1371,6 +1372,7 @@ TX.prototype.inspect = function inspect() {
     copy.block = this.block;
   delete copy._raw;
   delete copy._chain;
+  delete copy._unspent;
   copy.hash = this.hash('hex');
   copy.rhash = this.rhash;
   copy.rblock = this.rblock;