diff --git a/lib/file.js b/lib/file.js
index e024d006535..6cab0fafe7b 100644
--- a/lib/file.js
+++ b/lib/file.js
@@ -12,6 +12,8 @@ function debugObject (obj) {
   }
 }
 
+exports.readFile = node.fs.cat;
+
 exports.writeFile = function (filename, data, encoding) {
   var promise = new node.Promise();