diff --git a/lib/6to5/helpers/object.js b/lib/6to5/helpers/object.js
new file mode 100644
index 0000000000..a61d87e6f9
--- /dev/null
+++ b/lib/6to5/helpers/object.js
@@ -0,0 +1,5 @@
+"use strict";
+
+module.exports = function () {
+  return Object.create(null);
+};
diff --git a/lib/6to5/to-fast-properties.js b/lib/6to5/helpers/to-fast-properties.js
similarity index 100%
rename from lib/6to5/to-fast-properties.js
rename to lib/6to5/helpers/to-fast-properties.js
diff --git a/lib/6to5/util.js b/lib/6to5/util.js
index 3909bf9e9b..c5b33284be 100644
--- a/lib/6to5/util.js
+++ b/lib/6to5/util.js
@@ -25,10 +25,6 @@ exports.isInteger = function (i) {
   return _.isNumber(i) && i % 1 === 0;
 };
 
-exports.object = function () {
-  return Object.create(null);
-};
-
 exports.resolve = function (loc) {
   try {
     return require.resolve(loc);