diff --git a/lib/chain/chain.js b/lib/chain/chain.js
index 60e5bd70..722e6364 100644
--- a/lib/chain/chain.js
+++ b/lib/chain/chain.js
@@ -345,7 +345,7 @@ Chain.prototype.verify = co(function* verify(block, prev) {
       100);
   }
 
-  state = yield this.getDeployments(block, prev, ancestors);
+  state = yield this.getDeployments(block, prev);
 
   // Make sure the height contained in the coinbase is correct.
   if (state.hasBIP34()) {
@@ -433,12 +433,11 @@ Chain.prototype.verify = co(function* verify(block, prev) {
  * Check all deployments on a chain, ranging from p2sh to segwit.
  * @param {Block} block
  * @param {ChainEntry} prev
- * @param {ChainEntry[]} ancestors
  * @returns {Promise}
  * [{@link VerifyError}, {@link DeploymentState}].
  */
 
-Chain.prototype.getDeployments = co(function* getDeployments(block, prev, ancestors) {
+Chain.prototype.getDeployments = co(function* getDeployments(block, prev) {
   var height = prev.height + 1;
   var state = new DeploymentState();
   var active;
@@ -1965,14 +1964,11 @@ Chain.prototype.computeBlockVersion = co(function* computeBlockVersion(prev) {
 
 Chain.prototype.getDeploymentState = co(function* getDeploymentState() {
   var prev = yield this.tip.getPrevious();
-  var ancestors;
 
   if (!prev)
     return this.state;
 
-  ancestors = yield prev.getRetargetAncestors();
-
-  return yield this.getDeployments(this.tip, prev, ancestors);
+  return yield this.getDeployments(this.tip, prev);
 });
 
 /**