 diff --git a/Cakefile.js b/Cakefile.js
-index d4e733b7..d2b0cc88 100644
+index d4e733b7..56841968 100644
 --- a/Cakefile.js
 +++ b/Cakefile.js
-@@ -279,6 +279,7 @@ task('bench', 'quick benchmark of compilation time', () => {
+@@ -279,6 +279,8 @@ task('bench', 'quick benchmark of compilation time', () => {
  // Run the CoffeeScript test suite.
  var runTests = function (CoffeeScript) {
    CoffeeScript.register();
 +  require('babel-register');
++  require('babel-polyfill');
    const startTime = Date.now();
    let currentFile = null;
    let passedTests = 0;
-@@ -354,14 +355,14 @@ var runTests = function (CoffeeScript) {
+@@ -354,14 +356,14 @@ var runTests = function (CoffeeScript) {
    if (!generatorsAreAvailable) { files.splice(files.indexOf('generators.coffee'), 1); }
 
    for (const file of Array.from(files)) {

       } catch (error1) {
         const error = error1;
         failures.push({ filename, error });
@@ -372,7 +373,12 @@ var runTests = function (CoffeeScript) {
 };



+  echo 'Passed!'
+done
diff --git a/test/cluster.js b/test/cluster.js
index acce6046..9885c14b 100644
--- a/test/cluster.js
+++ b/test/cluster.js
@@ -5,6 +5,10 @@

 if (typeof testingBrowser !== 'undefined' && testingBrowser !== null) { return; }

