diff --git a/lib/coffee_script/coffee-script.js b/lib/coffee_script/coffee-script.js
index 4df4dcaf..58652a20 100644
--- a/lib/coffee_script/coffee-script.js
+++ b/lib/coffee_script/coffee-script.js
@@ -33,9 +33,8 @@
     }
   };
   // Improved error messages.
-  parser.parseError = function parseError(message, hash) {
-    throw new Error('Unexpected ' + hash.token + ' on line ' + hash.line);
-  };
+  // parser.parseError: (message, hash) ->
+  //   throw new Error 'Unexpected ' + parser.terminals_[hash.token] + ' on line ' + hash.line
   exports.VERSION = '0.5.0';
   // Compile CoffeeScript to JavaScript, using the Coffee/Jison compiler.
   exports.compile = function compile(code, options) {
diff --git a/src/coffee-script.coffee b/src/coffee-script.coffee
index ac8cfbc8..21ebcabc 100644
--- a/src/coffee-script.coffee
+++ b/src/coffee-script.coffee
@@ -25,8 +25,8 @@ parser.lexer: {
 }
 
 # Improved error messages.
-parser.parseError: (message, hash) ->
-  throw new Error 'Unexpected ' + hash.token + ' on line ' + hash.line
+# parser.parseError: (message, hash) ->
+#   throw new Error 'Unexpected ' + parser.terminals_[hash.token] + ' on line ' + hash.line
 
 exports.VERSION: '0.5.0'