diff --git a/lib/bcoin/txdb.js b/lib/bcoin/txdb.js
index e354aaf2..bb5a6dc3 100644
--- a/lib/bcoin/txdb.js
+++ b/lib/bcoin/txdb.js
@@ -31,8 +31,6 @@ function TXPool(prefix, db, options) {
   this.options = options;
   this.busy = false;
   this.jobs = [];
-
-  this.setMaxListeners(Number.MAX_SAFE_INTEGER);
 }
 
 utils.inherits(TXPool, EventEmitter);
@@ -57,7 +55,7 @@ TXPool.prototype._lock = function _lock(func, args, force) {
   this.busy = true;
 
   return function unlock() {
-    var item, block;
+    var item;
 
     assert(!called);
     called = true;