diff --git a/lib/lexer.js b/lib/lexer.js
index d98df58b..d38a1678 100644
--- a/lib/lexer.js
+++ b/lib/lexer.js
@@ -89,7 +89,7 @@
       if (include(JS_FORBIDDEN, id)) {
         if (forcedIdentifier) {
           tag = 'STRING';
-          id = ("'" + id + "'");
+          id = ("\"" + id + "\"");
           if (forcedIdentifier === 'accessor') {
             close_index = true;
             if (this.tag() !== '@') {
diff --git a/lib/nodes.js b/lib/nodes.js
index 5459193d..c755965a 100644
--- a/lib/nodes.js
+++ b/lib/nodes.js
@@ -111,7 +111,7 @@
         }
         return _b;
       }).call(this).join('');
-      return '\n' + idt + (override || this['class']) + children;
+      return '\n' + idt + (override || this["class"]) + children;
     };
     BaseNode.prototype.eachChild = function(func) {
       var _b, _c, _d, _e, _f, _g, _h, attr, child;
@@ -149,7 +149,7 @@
         }
       });
     };
-    BaseNode.prototype['class'] = 'BaseNode';
+    BaseNode.prototype["class"] = 'BaseNode';
     BaseNode.prototype.children = [];
     BaseNode.prototype.unwrap = function() {
       return this;
@@ -171,7 +171,7 @@
       return this;
     };
     __extends(Expressions, BaseNode);
-    Expressions.prototype['class'] = 'Expressions';
+    Expressions.prototype["class"] = 'Expressions';
     Expressions.prototype.children = ['expressions'];
     Expressions.prototype.isStatement = function() {
       return true;
@@ -260,7 +260,7 @@
       return this;
     };
     __extends(LiteralNode, BaseNode);
-    LiteralNode.prototype['class'] = 'LiteralNode';
+    LiteralNode.prototype["class"] = 'LiteralNode';
     LiteralNode.prototype.makeReturn = function() {
       return this.isStatement() ? this : LiteralNode.__superClass__.makeReturn.call(this);
     };
@@ -285,7 +285,7 @@
       return this;
     };
     __extends(ReturnNode, BaseNode);
-    ReturnNode.prototype['class'] = 'ReturnNode';
+    ReturnNode.prototype["class"] = 'ReturnNode';
     ReturnNode.prototype.isStatement = function() {
       return true;
     };
@@ -321,7 +321,7 @@
     };
     __extends(ValueNode, BaseNode);
     ValueNode.prototype.SOAK = " == undefined ? undefined : ";
-    ValueNode.prototype['class'] = 'ValueNode';
+    ValueNode.prototype["class"] = 'ValueNode';
     ValueNode.prototype.children = ['base', 'properties'];
     ValueNode.prototype.push = function(prop) {
       this.properties.push(prop);
@@ -412,7 +412,7 @@
       return this;
     };
     __extends(CommentNode, BaseNode);
-    CommentNode.prototype['class'] = 'CommentNode';
+    CommentNode.prototype["class"] = 'CommentNode';
     CommentNode.prototype.isStatement = function() {
       return true;
     };
@@ -439,7 +439,7 @@
       return this;
     };
     __extends(CallNode, BaseNode);
-    CallNode.prototype['class'] = 'CallNode';
+    CallNode.prototype["class"] = 'CallNode';
     CallNode.prototype.children = ['variable', 'args'];
     CallNode.prototype.newInstance = function() {
       this.isNew = true;
@@ -512,7 +512,7 @@
       return this;
     };
     __extends(ExtendsNode, BaseNode);
-    ExtendsNode.prototype['class'] = 'ExtendsNode';
+    ExtendsNode.prototype["class"] = 'ExtendsNode';
     ExtendsNode.prototype.children = ['child', 'parent'];
     ExtendsNode.prototype.compileNode = function(o) {
       var ref;
@@ -529,7 +529,7 @@
       return this;
     };
     __extends(AccessorNode, BaseNode);
-    AccessorNode.prototype['class'] = 'AccessorNode';
+    AccessorNode.prototype["class"] = 'AccessorNode';
     AccessorNode.prototype.children = ['name'];
     AccessorNode.prototype.compileNode = function(o) {
       var name, namePart;
@@ -546,7 +546,7 @@
       return this;
     };
     __extends(IndexNode, BaseNode);
-    IndexNode.prototype['class'] = 'IndexNode';
+    IndexNode.prototype["class"] = 'IndexNode';
     IndexNode.prototype.children = ['index'];
     IndexNode.prototype.compileNode = function(o) {
       var idx, prefix;
@@ -566,7 +566,7 @@
       return this;
     };
     __extends(RangeNode, BaseNode);
-    RangeNode.prototype['class'] = 'RangeNode';
+    RangeNode.prototype["class"] = 'RangeNode';
     RangeNode.prototype.children = ['from', 'to'];
     RangeNode.prototype.compileVariables = function(o) {
       var _b, _c, _d, parts;
@@ -660,7 +660,7 @@
       return this;
     };
     __extends(SliceNode, BaseNode);
-    SliceNode.prototype['class'] = 'SliceNode';
+    SliceNode.prototype["class"] = 'SliceNode';
     SliceNode.prototype.children = ['range'];
     SliceNode.prototype.compileNode = function(o) {
       var from, plusPart, to;
@@ -677,7 +677,7 @@
       return this;
     };
     __extends(ObjectNode, BaseNode);
-    ObjectNode.prototype['class'] = 'ObjectNode';
+    ObjectNode.prototype["class"] = 'ObjectNode';
     ObjectNode.prototype.children = ['properties'];
     ObjectNode.prototype.compileNode = function(o) {
       var _b, _c, _d, _e, _f, _g, _h, i, indent, inner, join, lastNoncom, nonComments, prop, props;
@@ -728,7 +728,7 @@
       return this;
     };
     __extends(ArrayNode, BaseNode);
-    ArrayNode.prototype['class'] = 'ArrayNode';
+    ArrayNode.prototype["class"] = 'ArrayNode';
     ArrayNode.prototype.children = ['objects'];
     ArrayNode.prototype.compileNode = function(o) {
       var _b, _c, code, i, obj, objects;
@@ -763,7 +763,7 @@
       return this;
     };
     __extends(ClassNode, BaseNode);
-    ClassNode.prototype['class'] = 'ClassNode';
+    ClassNode.prototype["class"] = 'ClassNode';
     ClassNode.prototype.children = ['variable', 'parent', 'properties'];
     ClassNode.prototype.isStatement = function() {
       return true;
@@ -846,7 +846,7 @@
     __extends(AssignNode, BaseNode);
     AssignNode.prototype.PROTO_ASSIGN = /^(\S+)\.prototype/;
     AssignNode.prototype.LEADING_DOT = /^\.(prototype\.)?/;
-    AssignNode.prototype['class'] = 'AssignNode';
+    AssignNode.prototype["class"] = 'AssignNode';
     AssignNode.prototype.children = ['variable', 'value'];
     AssignNode.prototype.topSensitive = function() {
       return true;
@@ -964,7 +964,7 @@
       return this;
     };
     __extends(CodeNode, BaseNode);
-    CodeNode.prototype['class'] = 'CodeNode';
+    CodeNode.prototype["class"] = 'CodeNode';
     CodeNode.prototype.children = ['params', 'body'];
     CodeNode.prototype.compileNode = function(o) {
       var _b, _c, _d, _e, _f, _g, _h, _i, _j, _k, _l, code, empty, func, i, param, params, sharedScope, splat, top, value;
@@ -1062,7 +1062,7 @@
       return this;
     };
     __extends(ParamNode, BaseNode);
-    ParamNode.prototype['class'] = 'ParamNode';
+    ParamNode.prototype["class"] = 'ParamNode';
     ParamNode.prototype.children = ['name'];
     ParamNode.prototype.compileNode = function(o) {
       return this.value.compile(o);
@@ -1081,7 +1081,7 @@
       return this;
     };
     __extends(SplatNode, BaseNode);
-    SplatNode.prototype['class'] = 'SplatNode';
+    SplatNode.prototype["class"] = 'SplatNode';
     SplatNode.prototype.children = ['name'];
     SplatNode.prototype.compileNode = function(o) {
       var _b;
@@ -1155,7 +1155,7 @@
       return this;
     };
     __extends(WhileNode, BaseNode);
-    WhileNode.prototype['class'] = 'WhileNode';
+    WhileNode.prototype["class"] = 'WhileNode';
     WhileNode.prototype.children = ['condition', 'guard', 'body'];
     WhileNode.prototype.isStatement = function() {
       return true;
@@ -1214,7 +1214,7 @@
     OpNode.prototype.CHAINABLE = ['<', '>', '>=', '<=', '===', '!=='];
     OpNode.prototype.ASSIGNMENT = ['||=', '&&=', '?='];
     OpNode.prototype.PREFIX_OPERATORS = ['typeof', 'delete'];
-    OpNode.prototype['class'] = 'OpNode';
+    OpNode.prototype["class"] = 'OpNode';
     OpNode.prototype.children = ['first', 'second'];
     OpNode.prototype.isUnary = function() {
       return !this.second;
@@ -1223,7 +1223,7 @@
       return indexOf(this.CHAINABLE, this.operator) >= 0;
     };
     OpNode.prototype.toString = function(idt) {
-      return OpNode.__superClass__.toString.call(this, idt, this['class'] + ' ' + this.operator);
+      return OpNode.__superClass__.toString.call(this, idt, this["class"] + ' ' + this.operator);
     };
     OpNode.prototype.compileNode = function(o) {
       o.operation = true;
@@ -1294,7 +1294,7 @@
       return this;
     };
     __extends(InNode, BaseNode);
-    InNode.prototype['class'] = 'InNode';
+    InNode.prototype["class"] = 'InNode';
     InNode.prototype.children = ['object', 'array'];
     InNode.prototype.isArray = function() {
       return this.array instanceof ValueNode && this.array.isArray();
@@ -1344,7 +1344,7 @@
       return this;
     };
     __extends(TryNode, BaseNode);
-    TryNode.prototype['class'] = 'TryNode';
+    TryNode.prototype["class"] = 'TryNode';
     TryNode.prototype.children = ['attempt', 'recovery', 'ensure'];
     TryNode.prototype.isStatement = function() {
       return true;
@@ -1376,7 +1376,7 @@
       return this;
     };
     __extends(ThrowNode, BaseNode);
-    ThrowNode.prototype['class'] = 'ThrowNode';
+    ThrowNode.prototype["class"] = 'ThrowNode';
     ThrowNode.prototype.children = ['expression'];
     ThrowNode.prototype.isStatement = function() {
       return true;
@@ -1395,7 +1395,7 @@
       return this;
     };
     __extends(ExistenceNode, BaseNode);
-    ExistenceNode.prototype['class'] = 'ExistenceNode';
+    ExistenceNode.prototype["class"] = 'ExistenceNode';
     ExistenceNode.prototype.children = ['expression'];
     ExistenceNode.prototype.compileNode = function(o) {
       return ExistenceNode.compileTest(o, this.expression);
@@ -1415,7 +1415,7 @@
       return this;
     };
     __extends(ParentheticalNode, BaseNode);
-    ParentheticalNode.prototype['class'] = 'ParentheticalNode';
+    ParentheticalNode.prototype["class"] = 'ParentheticalNode';
     ParentheticalNode.prototype.children = ['expression'];
     ParentheticalNode.prototype.isStatement = function() {
       return this.expression.isStatement();
@@ -1466,7 +1466,7 @@
       return this;
     };
     __extends(ForNode, BaseNode);
-    ForNode.prototype['class'] = 'ForNode';
+    ForNode.prototype["class"] = 'ForNode';
     ForNode.prototype.children = ['body', 'source', 'guard'];
     ForNode.prototype.isStatement = function() {
       return true;
@@ -1591,7 +1591,7 @@
       return this;
     };
     __extends(IfNode, BaseNode);
-    IfNode.prototype['class'] = 'IfNode';
+    IfNode.prototype["class"] = 'IfNode';
     IfNode.prototype.children = ['condition', 'switchSubject', 'body', 'elseBody', 'assigner'];
     IfNode.prototype.bodyNode = function() {
       return this.body == undefined ? undefined : this.body.unwrap();
@@ -1740,7 +1740,7 @@
     }
   });
   UTILITIES = {
-    'extends': "function(child, parent) {\n    var ctor = function(){};\n    ctor.prototype = parent.prototype;\n    child.prototype = new ctor();\n    child.prototype.constructor = child;\n    if (typeof parent.extended === \"function\") parent.extended(child);\n    child.__superClass__ = parent.prototype;\n  }",
+    "extends": "function(child, parent) {\n    var ctor = function(){};\n    ctor.prototype = parent.prototype;\n    child.prototype = new ctor();\n    child.prototype.constructor = child;\n    if (typeof parent.extended === \"function\") parent.extended(child);\n    child.__superClass__ = parent.prototype;\n  }",
     bind: "function(func, context) {\n    return function(){ return func.apply(context, arguments); };\n  }",
     hasProp: 'Object.prototype.hasOwnProperty',
     slice: 'Array.prototype.slice'
diff --git a/src/lexer.coffee b/src/lexer.coffee
index f05ab396..4f14a055 100644
--- a/src/lexer.coffee
+++ b/src/lexer.coffee
@@ -91,7 +91,7 @@ exports.Lexer = class Lexer
     if include(JS_FORBIDDEN, id)
       if forcedIdentifier
         tag = 'STRING'
-        id  = "'#id'"
+        id  = "\"#id\""
         if forcedIdentifier is 'accessor'
           close_index = true
           @tokens.pop() if @tag() isnt '@'