diff --git a/lib/bcoin/chainentry.js b/lib/bcoin/chainentry.js
index 8e9eb0fa..4c71035a 100644
--- a/lib/bcoin/chainentry.js
+++ b/lib/bcoin/chainentry.js
@@ -289,8 +289,9 @@ ChainEntry.prototype.getMedianTime = function getMedianTime(ancestors) {
 
 ChainEntry.prototype.getMedianTimeAsync = function getMedianTimeAsync(callback) {
   var self = this;
+  var MEDIAN_TIMESPAN = constants.block.MEDIAN_TIMESPAN;
 
-  return this.getAncestors(constants.block.MEDIAN_TIMESPAN, function(err, ancestors) {
+  return this.getAncestors(MEDIAN_TIMESPAN, function(err, ancestors) {
     if (err)
       return callback(err);
 
@@ -306,7 +307,9 @@ ChainEntry.prototype.getMedianTimeAsync = function getMedianTimeAsync(callback)
  */
 
 ChainEntry.prototype.isOutdated = function isOutdated(version, ancestors) {
-  return this.isSuperMajority(version, this.network.block.majorityRejectOutdated, ancestors);
+  return this.isSuperMajority(version,
+    this.network.block.majorityRejectOutdated,
+    ancestors);
 };
 
 /**
@@ -317,8 +320,7 @@ ChainEntry.prototype.isOutdated = function isOutdated(version, ancestors) {
  */
 
 ChainEntry.prototype.isOutdatedAsync = function isOutdatedAsync(version, callback) {
-  return this.isSuperMajorityAsync(
-    version,
+  return this.isSuperMajorityAsync(version,
     this.network.block.majorityRejectOutdated,
     callback);
 };
@@ -331,7 +333,9 @@ ChainEntry.prototype.isOutdatedAsync = function isOutdatedAsync(version, callbac
  */
 
 ChainEntry.prototype.isUpgraded = function isUpgraded(version, ancestors) {
-  return this.isSuperMajority(version, this.network.block.majorityEnforceUpgrade, ancestors);
+  return this.isSuperMajority(version,
+    this.network.block.majorityEnforceUpgrade,
+    ancestors);
 };
 
 /**
@@ -342,8 +346,7 @@ ChainEntry.prototype.isUpgraded = function isUpgraded(version, ancestors) {
  */
 
 ChainEntry.prototype.isUpgradedAsync = function isUpgradedAsync(version, callback) {
-  return this.isSuperMajorityAsync(
-    version,
+  return this.isSuperMajorityAsync(version,
     this.network.block.majorityEnforceUpgrade,
     callback);
 };
@@ -381,8 +384,9 @@ ChainEntry.prototype.isSuperMajority = function isSuperMajority(version, require
 
 ChainEntry.prototype.isSuperMajorityAsync = function isSuperMajorityAsync(version, required, callback) {
   var self = this;
+  var majorityWindow = this.network.block.majorityWindow;
 
-  return this.getAncestors(this.network.block.majorityWindow, function(err, ancestors) {
+  return this.getAncestors(majorityWindow, function(err, ancestors) {
     if (err)
       return callback(err);