diff --git a/lib/env.js b/lib/env.js
index c7ab35a4..f86cd5ea 100644
--- a/lib/env.js
+++ b/lib/env.js
@@ -7,6 +7,8 @@
 
 'use strict';
 
+var lazy = require('./utils/lazy');
+
 /**
  * A BCoin "environment" which is used for
  * bootstrapping the initial `bcoin` module.
@@ -105,6 +107,7 @@
 
 function Environment() {
   this.env = Environment;
+  this.require = lazy(require, this);
 
   // BN
   this.require('bn', 'bn.js');
@@ -208,21 +211,6 @@ function Environment() {
   this.require('bip70', './bip70');
 }
 
-/**
- * Assign a lazily required module.
- * @param {String} key
- * @param {String} path
- */
-
-Environment.prototype.require = function _require(key, path) {
-  var cache;
-  this.__defineGetter__(key, function() {
-    if (!cache)
-      cache = require(path);
-    return cache;
-  });
-};
-
 /**
  * Set the default network.
  * @param {String} options
@@ -260,12 +248,12 @@ Environment.prototype.now = function now() {
  */
 
 Environment.prototype.cache = function cache() {
-  require('./node/fullnode');
-  require('./node/spvnode');
-  require('./http');
-  require('./crypto/schnorr');
-  require('./utils/uri');
-  require('./bip70');
+  this.fullnode;
+  this.spvnode;
+  this.http;
+  this.crypto.schnorr;
+  this.uri;
+  this.bip70;
 };
 
 /*
@@ -273,7 +261,6 @@ Environment.prototype.cache = function cache() {
  * Environment.
  */
 
-exports.require = Environment.prototype.require;
 exports.cache = Environment.prototype.cache;
 exports.set = Environment.prototype.set;
 exports.now = Environment.prototype.now;
diff --git a/lib/utils/utils.js b/lib/utils/utils.js
index 74cc8540..61a77a33 100644
--- a/lib/utils/utils.js
+++ b/lib/utils/utils.js
@@ -1946,9 +1946,6 @@ utils.U32 = function U32(num) {
 
 utils.lazy = require('./lazy');
 
-if (utils.lazy.unsupported)
-  utils.lazy = function() { return utils.nop; };
-
 /*
  * Expose other objects.
  */
diff --git a/package.json b/package.json
index b2da1eaa..0ee0f70a 100644
--- a/package.json
+++ b/package.json
@@ -71,6 +71,7 @@
     "./lib/utils/native": "./browser/empty.js",
     "./lib/utils/nfkd": "./lib/utils/nfkd-browser.js",
     "./lib/utils/nexttick": "./lib/utils/nexttick-browser.js",
+    "./lib/utils/lazy": "./lib/utils/lazy-browser.js",
     "./lib/crypto/backend": "./lib/crypto/backend-browser.js",
     "./lib/crypto/ec": "./lib/crypto/ec-elliptic.js",
     "./lib/crypto/pk": "./lib/crypto/pk-browser.js",