diff --git a/server/root.js b/server/root.js
index 32c2b9dd..0d405d3c 100644
--- a/server/root.js
+++ b/server/root.js
@@ -2,6 +2,6 @@
 
 const mellow = require('mellow');
 
-module.exports = (dir, root) => {
-    return mellow.webToWin(dir, root || '/');
+module.exports = (dir, root, {webToWin = mellow.webToWin} = {}) => {
+    return webToWin(dir, root || '/');
 };
diff --git a/server/root.spec.js b/server/root.spec.js
index 9af58e18..56c08a36 100644
--- a/server/root.spec.js
+++ b/server/root.spec.js
@@ -3,34 +3,18 @@
 const {test, stub} = require('supertape');
 
 const mockRequire = require('mock-require');
-const {reRequire, stopAll} = mockRequire;
-
-const pathConfig = './config';
-const pathRoot = './root';
+const root = require('./root');
 
 test('cloudcmd: root: mellow', (t) => {
-    const config = stub().returns('');
     const webToWin = stub();
-    
-    const mellow = {
-        webToWin,
-    };
-    
-    mockRequire('mellow', mellow);
-    mockRequire(pathConfig, config);
-    
-    const root = reRequire(pathRoot);
+
     const dir = 'hello';
     const dirRoot = '/';
-    
-    root(dir);
-    
-    mockRequire.stop('mellow');
-    mockRequire.stopAll(pathConfig);
-    reRequire(pathRoot);
-    
-    stopAll();
-    
+
+    root(dir, '', {
+        webToWin,
+    });
+
     t.calledWith(webToWin, [dir, dirRoot], 'should call mellow');
     t.end();
 });