diff --git a/lib/coffee_script/coffee-script.js b/lib/coffee_script/coffee-script.js
index 832be407..e69de174 100644
--- a/lib/coffee_script/coffee-script.js
+++ b/lib/coffee_script/coffee-script.js
@@ -1,11 +1,15 @@
 (function(){
-  var sys;
+  var compiler, path, sys;
   // Executes the `coffee` Ruby program to convert from CoffeeScript to JavaScript.
   sys = require('sys');
+  path = require('path');
+  // The path to the CoffeeScript executable.
+  compiler = path.normalize(path.dirname(__filename) + '/../../bin/coffee');
+  // Compile a string over stdin, with global variables, for the REPL.
   exports.compile = function compile(code, callback) {
     var coffee, js;
     js = '';
-    coffee = process.createChildProcess('coffee', ['--eval', '--no-wrap', '--globals']);
+    coffee = process.createChildProcess(compiler, ['--eval', '--no-wrap', '--globals']);
     coffee.addListener('output', function(results) {
       if ((typeof results !== "undefined" && results !== null)) {
         return js += results;
@@ -17,10 +21,11 @@
     coffee.write(code);
     return coffee.close();
   };
+  // Compile a list of CoffeeScript files on disk.
   exports.compile_files = function compile_files(paths, callback) {
     var coffee, js;
     js = '';
-    coffee = process.createChildProcess('coffee', ['--print'].concat(paths));
+    coffee = process.createChildProcess(compiler, ['--print'].concat(paths));
     coffee.addListener('output', function(results) {
       if ((typeof results !== "undefined" && results !== null)) {
         return js += results;
diff --git a/lib/coffee_script/runner.js b/lib/coffee_script/runner.js
index 4623b2a8..10f6ac9b 100644
--- a/lib/coffee_script/runner.js
+++ b/lib/coffee_script/runner.js
@@ -1,5 +1,6 @@
 (function(){
   var coffee, paths;
+  // Quickie script to compile and run all the files given as arguments.
   coffee = require('./coffee-script');
   process.mixin(require('sys'));
   paths = process.ARGV;
diff --git a/src/coffee-script.coffee b/src/coffee-script.coffee
index dd0bf89b..c1649364 100644
--- a/src/coffee-script.coffee
+++ b/src/coffee-script.coffee
@@ -1,10 +1,15 @@
 # Executes the `coffee` Ruby program to convert from CoffeeScript to JavaScript.
 
-sys: require('sys')
+sys:  require('sys')
+path: require('path')
 
+# The path to the CoffeeScript executable.
+compiler: path.normalize(path.dirname(__filename) + '/../../bin/coffee')
+
+# Compile a string over stdin, with global variables, for the REPL.
 exports.compile: (code, callback) ->
   js: ''
-  coffee: process.createChildProcess 'coffee', ['--eval', '--no-wrap', '--globals']
+  coffee: process.createChildProcess compiler, ['--eval', '--no-wrap', '--globals']
   coffee.addListener 'output', (results) ->
     js += results if results?
   coffee.addListener 'exit', ->
@@ -12,9 +17,10 @@ exports.compile: (code, callback) ->
   coffee.write(code)
   coffee.close()
 
+# Compile a list of CoffeeScript files on disk.
 exports.compile_files: (paths, callback) ->
   js: ''
-  coffee: process.createChildProcess 'coffee', ['--print'].concat(paths)
+  coffee: process.createChildProcess compiler, ['--print'].concat(paths)
   coffee.addListener 'output', (results) ->
     js += results if results?
   coffee.addListener 'exit', ->
diff --git a/src/runner.coffee b/src/runner.coffee
index 1d73ac64..aed68387 100644
--- a/src/runner.coffee
+++ b/src/runner.coffee
@@ -1,3 +1,5 @@
+# Quickie script to compile and run all the files given as arguments.
+
 coffee: require './coffee-script'
 process.mixin require 'sys'