diff --git a/lib/mempool/fees.js b/lib/mempool/fees.js
index ad823a95..56ffb6b0 100644
--- a/lib/mempool/fees.js
+++ b/lib/mempool/fees.js
@@ -866,7 +866,6 @@ PolicyEstimator.fromRaw = function fromRaw(data, logger) {
 PolicyEstimator.prototype.inject = function inject(estimator) {
   this.bestHeight = estimator.bestHeight;
   this.feeStats = estimator.feeStats;
-  this.priStats = estimator.priStats;
   return this;
 };