diff --git a/lib/coffee-script/coffee-script.js b/lib/coffee-script/coffee-script.js
index 383a1850..4cdecd8c 100644
--- a/lib/coffee-script/coffee-script.js
+++ b/lib/coffee-script/coffee-script.js
@@ -103,14 +103,15 @@
   });
 
   exports.run = function(code, options) {
-    var answer, mainModule, _ref;
+    var answer, dir, mainModule, _ref;
     if (options == null) {
       options = {};
     }
     mainModule = require.main;
     mainModule.filename = process.argv[1] = options.filename ? fs.realpathSync(options.filename) : '.';
     mainModule.moduleCache && (mainModule.moduleCache = {});
-    mainModule.paths = require('module')._nodeModulePaths(path.dirname(fs.realpathSync(options.filename || '.')));
+    dir = options.fileName ? path.dirname(fs.realpathSync(options.filename)) : fs.realpathSync('.');
+    mainModule.paths = require('module')._nodeModulePaths(dir);
     if (!helpers.isCoffee(mainModule.filename) || require.extensions) {
       answer = compile(code, options);
       code = (_ref = answer.js) != null ? _ref : answer;
diff --git a/src/coffee-script.coffee b/src/coffee-script.coffee
index e6ceecd7..ec8cb91c 100644
--- a/src/coffee-script.coffee
+++ b/src/coffee-script.coffee
@@ -107,7 +107,11 @@ exports.run = (code, options = {}) ->
   mainModule.moduleCache and= {}
 
   # Assign paths for node_modules loading
-  mainModule.paths = require('module')._nodeModulePaths path.dirname fs.realpathSync options.filename or '.'
+  dir = if options.fileName
+    path.dirname fs.realpathSync options.filename
+  else
+    fs.realpathSync '.'
+  mainModule.paths = require('module')._nodeModulePaths dir
 
   # Compile.
   if not helpers.isCoffee(mainModule.filename) or require.extensions