diff --git a/Gruntfile.js b/Gruntfile.js
index ff89c737d..838e7b395 100644
--- a/Gruntfile.js
+++ b/Gruntfile.js
@@ -229,7 +229,7 @@ module.exports = function(grunt) {
   grunt.task.loadTasks('tasks');
 
   grunt.registerTask('bench', ['metrics']);
-  grunt.registerTask('sauce', [] /* process.env.SAUCE_USERNAME ? ['tests', 'connect', 'saucelabs-mocha'] : [] */);
+  grunt.registerTask('sauce', process.env.SAUCE_USERNAME ? ['tests', 'connect', 'saucelabs-mocha'] : []);
 
   grunt.registerTask('travis', process.env.PUBLISH ? ['default', 'sauce', 'metrics', 'publish:latest'] : ['default']);
 
diff --git a/spec/security.js b/spec/security.js
index 45b96c34b..12b96e629 100644
--- a/spec/security.js
+++ b/spec/security.js
@@ -11,11 +11,16 @@ describe('security issues', function() {
         });
 
         it('should allow prototype properties that are not constructors', function() {
-            class TestClass {
-                get abc() {
+            function TestClass() {
+            }
+
+            Object.defineProperty(TestClass.prototype, 'abc', {
+                get: function() {
                     return 'xyz';
                 }
-            }
+
+            });
+
             shouldCompileTo('{{#with this as |obj|}}{{obj.abc}}{{/with}}',
                 new TestClass(), 'xyz');
         });