diff --git a/Makefile b/Makefile
index 9410978c3..caee01cc2 100644
--- a/Makefile
+++ b/Makefile
@@ -1,18 +1,14 @@
 all:
 	@npm run webpack
-	@cp -f lib/workers/worker-browser.js browser/bcoin-worker.js
 
 browser:
 	@npm run webpack-browser
-	@cp -f lib/workers/worker-browser.js browser/bcoin-worker.js
 
 compat:
 	@npm run webpack-compat
-	@cp -f lib/workers/worker-browser.js browser/bcoin-worker.js
 
 node:
 	@npm run webpack-node
-	@cp -f lib/workers/worker.js ./bcoin-worker.js
 
 clean:
 	@npm run clean
diff --git a/browser/index.js b/browser/index.js
index e49a381c3..16bed1888 100644
--- a/browser/index.js
+++ b/browser/index.js
@@ -235,8 +235,7 @@ node = new bcoin.fullnode({
   coinCache: 30000000,
   logConsole: true,
   workers: true,
-  workerURL: '/bcoin-worker.js',
-  masterURL: '/bcoin-master.js',
+  workerFile: '/bcoin-worker.js',
   logger: logger
 });
 
diff --git a/browser/server.js b/browser/server.js
index 42331f159..ea3775126 100644
--- a/browser/server.js
+++ b/browser/server.js
@@ -8,7 +8,6 @@ const index = fs.readFileSync(`${__dirname}/index.html`);
 const indexjs = fs.readFileSync(`${__dirname}/index.js`);
 const debug = fs.readFileSync(`${__dirname}/debug.html`);
 const bcoin = fs.readFileSync(`${__dirname}/bcoin.js`);
-const master = fs.readFileSync(`${__dirname}/bcoin-master.js`);
 const worker = fs.readFileSync(`${__dirname}/bcoin-worker.js`);
 
 let proxy = new WSProxy({
@@ -49,10 +48,6 @@ server.get('/bcoin.js', (req, res) => {
   res.send(200, bcoin, 'js');
 });
 
-server.get('/bcoin-master.js', (req, res) => {
-  res.send(200, master, 'js');
-});
-
 server.get('/bcoin-worker.js', (req, res) => {
   res.send(200, worker, 'js');
 });
diff --git a/lib/node/node.js b/lib/node/node.js
index 8e94c7cc6..c1410bf15 100644
--- a/lib/node/node.js
+++ b/lib/node/node.js
@@ -89,9 +89,7 @@ Node.prototype.initOptions = function initOptions() {
     enabled: config.bool('workers'),
     size: config.num('workers-size'),
     timeout: config.num('workers-timeout'),
-    workerFile: config.str('worker-file'),
-    workerURL: config.str('worker-url'),
-    masterURL: config.str('master-url')
+    file: config.str('worker-file')
   });
 };
 
diff --git a/lib/workers/master.js b/lib/workers/master.js
index 0797a83e7..007d5690b 100644
--- a/lib/workers/master.js
+++ b/lib/workers/master.js
@@ -17,7 +17,6 @@ const Framer = require('./framer');
 const packets = require('./packets');
 const HAS_WORKERS = typeof global.postMessage === 'function';
 const HAS_CP = !!(process.stdin && process.stdout && process.stderr);
-let server;
 
 /**
  * Represents the master process.
@@ -249,9 +248,4 @@ Master.prototype.handlePacket = function handlePacket(packet) {
  * Expose
  */
 
-server = new Master();
-
-if (HAS_WORKERS)
-  global.master = server;
-
-module.exports = server;
+module.exports = Master;
diff --git a/lib/workers/worker-browser.js b/lib/workers/worker-browser.js
index 0f4f46316..58386bbc5 100644
--- a/lib/workers/worker-browser.js
+++ b/lib/workers/worker-browser.js
@@ -7,13 +7,14 @@
 
 'use strict';
 
+let Master = require('./master');
+
 self.onmessage = function onmessage(event) {
-  var env;
+  let env, server;
 
   self.onmessage = function() {};
 
   env = JSON.parse(event.data);
-
-  self.importScripts(env.BCOIN_MASTER_URL);
-  self.master.listen(env);
+  server = new Master();
+  server.listen(env);
 };
diff --git a/lib/workers/worker.js b/lib/workers/worker.js
index c227e49c6..1d1d25f9d 100644
--- a/lib/workers/worker.js
+++ b/lib/workers/worker.js
@@ -7,6 +7,7 @@
 
 'use strict';
 
-let master = require('./master');
+let Master = require('./master');
+let server = new Master();
 
-master.listen(process.env);
+server.listen(process.env);
diff --git a/lib/workers/workerpool.js b/lib/workers/workerpool.js
index 35451396b..0306f7e33 100644
--- a/lib/workers/workerpool.js
+++ b/lib/workers/workerpool.js
@@ -52,9 +52,7 @@ function WorkerPool(options) {
   this.nonce = 0;
   this.enabled = true;
 
-  this.workerFile = WorkerPool.WORKER_FILE;
-  this.workerURL = WorkerPool.WORKER_URL;
-  this.masterURL = WorkerPool.MASTER_URL;
+  this.file = WorkerPool.WORKER_FILE;
 
   bindExit();
   pools.add(this);
@@ -78,20 +76,6 @@ WorkerPool.CORES = getCores();
 
 WorkerPool.WORKER_FILE = process.env.BCOIN_WORKER_FILE || 'worker.js';
 
-/**
- * Default worker URL.
- * @const {String}
- */
-
-WorkerPool.WORKER_URL = process.env.BCOIN_WORKER_URL || '/bcoin-worker.js';
-
-/**
- * Default master URL.
- * @const {String}
- */
-
-WorkerPool.MASTER_URL = process.env.BCOIN_MASTER_URL || '/bcoin-master.js';
-
 /**
  * Set worker pool options.
  * @param {Object} options
@@ -118,19 +102,9 @@ WorkerPool.prototype.set = function set(options) {
     this.timeout = options.timeout;
   }
 
-  if (options.workerFile != null) {
-    assert(typeof options.workerFile === 'string');
-    this.workerFile = options.workerFile;
-  }
-
-  if (options.workerURL != null) {
-    assert(typeof options.workerURL === 'string');
-    this.workerURL = options.workerURL;
-  }
-
-  if (options.masterURL != null) {
-    assert(typeof options.masterURL === 'string');
-    this.masterURL = options.masterURL;
+  if (options.file != null) {
+    assert(typeof options.file === 'string');
+    this.file = options.file;
   }
 };
 
@@ -176,7 +150,9 @@ WorkerPool.prototype.close = async function close() {
  */
 
 WorkerPool.prototype.spawn = function spawn(id) {
-  let child = new Worker(id, this);
+  let child = new Worker(this.file);
+
+  child.id = id;
 
   child.on('error', (err) => {
     this.emit('error', err, child);
@@ -416,18 +392,17 @@ WorkerPool.prototype.scrypt = async function scrypt(passwd, salt, N, r, p, len)
  * Represents a worker.
  * @alias module:workers.Worker
  * @constructor
- * @param {Number} id
- * @param {Object} options
+ * @param {String} file
  */
 
-function Worker(id, options) {
+function Worker(file) {
   if (!(this instanceof Worker))
-    return new Worker(id, options);
+    return new Worker(file);
 
   EventEmitter.call(this);
 
-  this.id = id;
-  this.options = options;
+  this.file = file;
+  this.id = -1;
 
   this.framer = new Framer();
   this.parser = new Parser();
@@ -435,7 +410,6 @@ function Worker(id, options) {
   this.child = null;
 
   this.env = {
-    BCOIN_MASTER_URL: this.options.masterURL,
     BCOIN_WORKER_NETWORK: Network.type,
     BCOIN_WORKER_ISTTY: process.stdout
       ? (process.stdout.isTTY ? '1' : '0')
@@ -484,7 +458,7 @@ Worker.prototype._init = function _init() {
  */
 
 Worker.prototype._initWebWorkers = function _initWebWorkers() {
-  this.child = new global.Worker(this.options.workerURL);
+  this.child = new global.Worker(this.file);
 
   this.child.onerror = (event) => {
     this.emit('error', new Error('Worker error.'));
@@ -515,7 +489,7 @@ Worker.prototype._initWebWorkers = function _initWebWorkers() {
 
 Worker.prototype._initChildProcess = function _initChildProcess() {
   let bin = process.argv[0];
-  let file = path.resolve(__dirname, this.options.workerFile);
+  let file = path.resolve(__dirname, this.file);
   let env = Object.assign({}, process.env, this.env);
   let options = { stdio: 'pipe', env: env };
 
diff --git a/package.json b/package.json
index 8ef7057cf..69f96c91d 100644
--- a/package.json
+++ b/package.json
@@ -58,7 +58,7 @@
     "bcoin": "./bin/bcoin"
   },
   "scripts": {
-    "clean": "rm -f {browser/,}{bcoin.js,bcoin-master.js,bcoin-worker.js}",
+    "clean": "rm -f {browser/,}{bcoin.js,bcoin-worker.js}",
     "docs": "jsdoc -c jsdoc.json",
     "lint": "eslint lib/ test/ migrate/ examples/ bench/ scripts/*.js bin/cli bin/node bin/spvnode || exit 0",
     "lint-file": "eslint",
diff --git a/webpack.browser.js b/webpack.browser.js
index 999ea1f66..3229d7940 100644
--- a/webpack.browser.js
+++ b/webpack.browser.js
@@ -10,7 +10,7 @@ module.exports = {
   target: 'web',
   entry: {
     'bcoin': './lib/bcoin-browser',
-    'bcoin-master': './lib/workers/master'
+    'bcoin-worker': './lib/workers/worker-browser'
   },
   output: {
     path: path.join(__dirname, 'browser'),
@@ -24,11 +24,13 @@ module.exports = {
     new webpack.DefinePlugin({
       'process.env.BCOIN_NETWORK':
         str(env.BCOIN_NETWORK || 'main'),
-      'process.env.BCOIN_WORKER_URL':
-        str(env.BCOIN_WORKER_URL || '/bcoin-worker.js'),
-      'process.env.BCOIN_MASTER_URL':
-        str(env.BCOIN_MASTER_URL || '/bcoin-master.js')
+      'process.env.BCOIN_WORKER_FILE':
+        str(env.BCOIN_WORKER_FILE || '/bcoin-worker.js')
     }),
-    new UglifyJsPlugin()
+    new UglifyJsPlugin({
+      compress: {
+        warnings: true
+      }
+    })
   ]
 };
diff --git a/webpack.compat.js b/webpack.compat.js
index 2fef01938..424508c41 100644
--- a/webpack.compat.js
+++ b/webpack.compat.js
@@ -9,7 +9,7 @@ module.exports = {
   target: 'web',
   entry: {
     'bcoin': './lib/bcoin-browser',
-    'bcoin-master': './lib/workers/master'
+    'bcoin-worker': './lib/workers/worker-browser'
   },
   output: {
     path: path.join(__dirname, 'browser'),
@@ -30,10 +30,8 @@ module.exports = {
     new webpack.DefinePlugin({
       'process.env.BCOIN_NETWORK':
         str(env.BCOIN_NETWORK || 'main'),
-      'process.env.BCOIN_WORKER_URL':
-        str(env.BCOIN_WORKER_URL || '/bcoin-worker.js'),
-      'process.env.BCOIN_MASTER_URL':
-        str(env.BCOIN_MASTER_URL || '/bcoin-master.js')
+      'process.env.BCOIN_WORKER_FILE':
+        str(env.BCOIN_WORKER_FILE || '/bcoin-worker.js')
     }),
     new webpack.optimize.UglifyJsPlugin({
       compress: {
diff --git a/webpack.node.js b/webpack.node.js
index 6a1d1e620..d27705063 100644
--- a/webpack.node.js
+++ b/webpack.node.js
@@ -40,6 +40,10 @@ module.exports = {
         str(env.BCOIN_WORKER_FILE || 'bcoin-worker.js')
     }),
     new webpack.IgnorePlugin(/^utf-8-validate|bufferutil$/),
-    new UglifyJsPlugin()
+    new UglifyJsPlugin({
+      compress: {
+        warnings: true
+      }
+    })
   ]
 };