diff --git a/lib/coffee-script/browser.js b/lib/coffee-script/browser.js
index bb8602f2..6da16fef 100644
--- a/lib/coffee-script/browser.js
+++ b/lib/coffee-script/browser.js
@@ -7,10 +7,11 @@
   CoffeeScript.require = require;
 
   CoffeeScript["eval"] = function(code, options) {
+    var _ref;
     if (options == null) {
       options = {};
     }
-    if (options.bare == null) {
+    if ((_ref = options.bare) == null) {
       options.bare = true;
     }
     return eval(CoffeeScript.compile(code, options));
diff --git a/lib/coffee-script/nodes.js b/lib/coffee-script/nodes.js
index 392dfaab..c92fff8b 100644
--- a/lib/coffee-script/nodes.js
+++ b/lib/coffee-script/nodes.js
@@ -2,7 +2,7 @@
 (function() {
   var Access, Arr, Assign, Base, Block, Call, Class, Closure, Code, Comment, Existence, Extends, For, IDENTIFIER, IDENTIFIER_STR, IS_STRING, If, In, Index, LEVEL_ACCESS, LEVEL_COND, LEVEL_LIST, LEVEL_OP, LEVEL_PAREN, LEVEL_TOP, Literal, METHOD_DEF, NEGATE, NO, Obj, Op, Param, Parens, RESERVED, Range, Return, SIMPLENUM, STRICT_PROSCRIBED, Scope, Slice, Splat, Switch, TAB, THIS, Throw, Try, UTILITIES, Value, While, YES, compact, del, ends, extend, flatten, last, merge, multident, starts, unfoldSoak, utility, _ref, _ref1,
     __hasProp = {}.hasOwnProperty,
-    __extends = function(child, parent) { for (var key in parent) { if (__hasProp.call(parent, key)) child[key] = parent[key]; } function ctor() { this.constructor = child; } ctor.prototype = parent.prototype; child.prototype = new ctor; child.__super__ = parent.prototype; return child; },
+    __extends = function(child, parent) { for (var key in parent) { if (__hasProp.call(parent, key)) child[key] = parent[key]; } function ctor() { this.constructor = child; } ctor.prototype = parent.prototype; child.prototype = new ctor(); child.__super__ = parent.prototype; return child; },
     __indexOf = [].indexOf || function(item) { for (var i = 0, l = this.length; i < l; i++) { if (i in this && this[i] === item) return i; } return -1; };
 
   Scope = require('./scope').Scope;
@@ -2862,7 +2862,7 @@
 
   UTILITIES = {
     "extends": function() {
-      return "function(child, parent) { for (var key in parent) { if (" + (utility('hasProp')) + ".call(parent, key)) child[key] = parent[key]; } function ctor() { this.constructor = child; } ctor.prototype = parent.prototype; child.prototype = new ctor; child.__super__ = parent.prototype; return child; }";
+      return "function(child, parent) { for (var key in parent) { if (" + (utility('hasProp')) + ".call(parent, key)) child[key] = parent[key]; } function ctor() { this.constructor = child; } ctor.prototype = parent.prototype; child.prototype = new ctor(); child.__super__ = parent.prototype; return child; }";
     },
     bind: function() {
       return 'function(fn, me){ return function(){ return fn.apply(me, arguments); }; }';
diff --git a/src/nodes.coffee b/src/nodes.coffee
index 20b782c4..296dd002 100644
--- a/src/nodes.coffee
+++ b/src/nodes.coffee
@@ -1949,7 +1949,7 @@ UTILITIES =
   # Correctly set up a prototype chain for inheritance, including a reference
   # to the superclass for `super()` calls, and copies of any static properties.
   extends: -> """
-    function(child, parent) { for (var key in parent) { if (#{utility 'hasProp'}.call(parent, key)) child[key] = parent[key]; } function ctor() { this.constructor = child; } ctor.prototype = parent.prototype; child.prototype = new ctor; child.__super__ = parent.prototype; return child; }
+    function(child, parent) { for (var key in parent) { if (#{utility 'hasProp'}.call(parent, key)) child[key] = parent[key]; } function ctor() { this.constructor = child; } ctor.prototype = parent.prototype; child.prototype = new ctor(); child.__super__ = parent.prototype; return child; }
   """
 
   # Create a function bound to the current value of "this".