diff --git a/lib/module.js b/lib/module.js
index 7aaf6f0713a..75809bafd49 100644
--- a/lib/module.js
+++ b/lib/module.js
@@ -34,6 +34,9 @@ function requireNative (id, cb) {
 // first pass, just local
 function require (id, parent, cb) {
   if (id in natives) return requireNative(id, cb);
+  if (id in nativeModuleCache) {
+    return nativeModuleCache[id];
+  }
   if (parent && parent.uri) {
     var base = parent.uri;
   } else {
@@ -212,6 +215,7 @@ function resolve (root, id, parent, cb) {
 function main (uri) {
   if (process.mainModule) return process.mainModule;
   process.mainModule = new Module(uri, null, ".");
+  nativeModuleCache["."] = process.mainModule;
   loadModule(process.mainModule, function (er) {
     if (er) throw er;
   });
@@ -260,7 +264,8 @@ function Module (uri, parent, id) {
   // bind require's context
   var self = this;
   this.require = function (id) { return require(id, self) };
-  this.require.main = process.mainModule;
+  Object.defineProperty(this.require, "main",
+    { get : function () { return process.mainModule }});
   this.require.async = function (id, cb) { return require(id, self, cb || noop) };
   Object.defineProperty(this.require, "paths",
     { set : function (newPaths) { exports.paths = newPaths }