coffee-script.diff

diff --git a/src/coffee-script.coffee b/src/coffee-script.coffee
index fe6f54a..93d990a 100644
--- a/src/coffee-script.coffee
+++ b/src/coffee-script.coffee
@@ -10,7 +10,7 @@
 if process?
   process.mixin require 'nodes'
   path:         require 'path'
-  Lexer:        require('lexer').Lexer
+  LexerClass:   require('lexer').Lexer
   parser:       require('parser').parser
 else
   parser: exports.parser
@@ -20,7 +20,7 @@ else
 exports.VERSION: '0.5.5'

 # Instantiate a Lexer for our use here.
-lexer: new Lexer()
+lexer: new (LexerClass ? Lexer)()

 # Compile a string of CoffeeScript code to JavaScript, using the Coffee/Jison
 # compiler.