diff --git a/client.js b/client.js
index 62ddf0d..557a2fe 100644
--- a/client.js
+++ b/client.js
@@ -1 +1 @@
-require('fetch');
+module.exports = require('fetch');
diff --git a/npm-client.js b/npm-client.js
index 72f1b48..48d1742 100644
--- a/npm-client.js
+++ b/npm-client.js
@@ -1 +1 @@
-require('whatwg-fetch');
+module.exports = require('whatwg-fetch');
diff --git a/server.js b/server.js
index 0581573..6400a40 100644
--- a/server.js
+++ b/server.js
@@ -8,7 +8,7 @@ global.Headers = global.self.Headers;
 global.Request = global.self.Request;
 global.Response = global.self.Response;
 var realFetch = global.self.fetch;
-global.fetch = function(url, options) {
+module.exports = global.fetch = function(url, options) {
 	if (/^\/\//.test(url)) {
 		url = 'https:' + url;
 	}