diff --git a/Makefile b/Makefile
index 7ab15b36..f0d4d487 100644
--- a/Makefile
+++ b/Makefile
@@ -1,14 +1,11 @@
 all:
-	@./node_modules/.bin/browserify lib/bcoin.js -o browser/bcoin.js
-
-ugly:
-	@./node_modules/.bin/uglifyjs --comments '/\*[^\0]+?Copyright[^\0]+?\*/' -o browser/bcoin.min.js browser/bcoin.js
+	@npm run browserify
+	@npm run uglify
 
 clean:
-	@rm browser/bcoin.js
-	@rm browser/bcoin.min.js
+	@npm run clean
 
 test:
 	@npm test
 
-.PHONY: all ugly clean test
+.PHONY: all clean test
diff --git a/browser/empty.js b/browser/empty.js
index 7d102507..f7fc6dad 100644
--- a/browser/empty.js
+++ b/browser/empty.js
@@ -1,2 +1,3 @@
 // Empty module for browserify.
+module.exports = null;
 throw new Error('Module not available.');
diff --git a/browser/server.js b/browser/server.js
index 40354747..8d1ebfe1 100644
--- a/browser/server.js
+++ b/browser/server.js
@@ -10,7 +10,7 @@ var proxy = require('./wsproxy')({
 
 var index = fs.readFileSync(__dirname + '/index.html');
 var bcoin = fs.readFileSync(__dirname + '/bcoin.js');
-var worker = fs.readFileSync(__dirname + '/../lib/bcoin/worker.js');
+var worker = fs.readFileSync(__dirname + '/../lib/workers/worker.js');
 
 server.get('/favicon.ico', function(req, res, next, send) {
   send(404, '', 'text');
diff --git a/package.json b/package.json
index da5d3c8e..6aef88d5 100644
--- a/package.json
+++ b/package.json
@@ -11,7 +11,10 @@
   },
   "preferGlobal": true,
   "scripts": {
-    "test": "mocha --reporter spec test/*-test.js"
+    "test": "mocha --reporter spec test/*-test.js",
+    "browserify": "browserify --im -o browser/bcoin.js lib/bcoin.js",
+    "uglify": "uglifyjs -m -o browser/bcoin.min.js browser/bcoin.js",
+    "clean": "rm browser/bcoin.js browser/bcoin.min.js"
   },
   "repository": "git://github.com/bcoin-org/bcoin.git",
   "keywords": [