diff --git a/lib/mempool/mempool.js b/lib/mempool/mempool.js
index 1d7d8d27..f74c50f5 100644
--- a/lib/mempool/mempool.js
+++ b/lib/mempool/mempool.js
@@ -1502,7 +1502,8 @@ Mempool.prototype.isDoubleSpend = function isDoubleSpend(tx) {
  * @returns {Promise} - Returns {@link CoinView}.
  */
 
-Mempool.prototype._getCoinView = co(function* getCoinView(tx) {
+Mempool.prototype.getCoinView = co(function* getCoinView(tx) {
+  var state = this.chain.state;
   var view = new CoinView();
   var prevout = tx.getPrevout();
   var i, entry, hash, coins;
@@ -1528,6 +1529,9 @@ Mempool.prototype._getCoinView = co(function* getCoinView(tx) {
     view.add(coins);
   }
 
+  if (state !== this.chain.state)
+    throw new Error('Chain state changed while getting coins.');
+
   return view;
 });
 
@@ -1538,8 +1542,9 @@ Mempool.prototype._getCoinView = co(function* getCoinView(tx) {
  * @returns {Promise} - Returns {@link CoinView}.
  */
 
-Mempool.prototype.getCoinView = co(function* getCoinView(tx) {
-  var view = yield this.chain.getCoinView(tx);
+Mempool.prototype._getCoinView = co(function* getCoinView(tx) {
+  var state = this.chain.state;
+  var view = yield this.chain.db.getCoinView(tx);
   var items = view.toArray();
   var i, coins, entry;
 
@@ -1557,6 +1562,9 @@ Mempool.prototype.getCoinView = co(function* getCoinView(tx) {
     view.addTX(entry.tx, -1);
   }
 
+  if (state !== this.chain.state)
+    throw new Error('Chain state changed while getting coins.');
+
   return view;
 });