diff --git a/lib/bcoin/walletdb.js b/lib/bcoin/walletdb.js
index bdac4d7d..7ae35ff8 100644
--- a/lib/bcoin/walletdb.js
+++ b/lib/bcoin/walletdb.js
@@ -51,6 +51,7 @@ function WalletDB(options) {
   this.fees = options.fees;
   this.logger = options.logger || bcoin.defaultLogger;
   this.batches = {};
+  this.watchers = {};
   this.workerPool = null;
 
   // We need one read lock for `get` and `create`.
@@ -76,8 +77,6 @@ function WalletDB(options) {
   if (bcoin.useWorkers)
     this.workerPool = new bcoin.workers();
 
-  this.watchers = {};
-
   this._init();
 }
 
@@ -95,6 +94,12 @@ WalletDB.prototype._init = function _init() {
     self.emit('error', err);
   });
 
+  if (bcoin.useWorkers) {
+    this.workerPool.on('error', function(err) {
+      self.emit('error', err);
+    });
+  }
+
   function handleEvent(event, tx, map) {
     var i, path;