diff --git a/lib/bcoin/chain.js b/lib/bcoin/chain.js
index d04b66e2..897d1ee4 100644
--- a/lib/bcoin/chain.js
+++ b/lib/bcoin/chain.js
@@ -593,9 +593,7 @@ Chain.prototype._verify = function _verify(block, prev, callback) {
       }
 
       // Get timestamp for tx.isFinal().
-      ts = (state.lockFlags & constants.flags.MEDIAN_TIME_PAST) !== 0
-        ? medianTime
-        : block.ts;
+      ts = state.hasMTP() ? medianTime : block.ts;
 
       // Check all transactions
       for (i = 0; i < block.txs.length; i++) {
@@ -2546,6 +2544,15 @@ DeploymentState.prototype.hasCLTV = function hasCLTV() {
   return (this.flags & constants.flags.VERIFY_CHECKLOCKTIMEVERIFY) !== 0;
 };
 
+/**
+ * Test whether median time past locktime is active.
+ * @returns {Boolean}
+ */
+
+DeploymentState.prototype.hasMTP = function hasMTP() {
+  return (this.lockFlags & constants.flags.MEDIAN_TIME_PAST) !== 0
+};
+
 /**
  * Test whether csv is active.
  * @returns {Boolean}