diff --git a/lib/coffee-script.js b/lib/coffee-script.js
index 8523aad3..95d31302 100755
--- a/lib/coffee-script.js
+++ b/lib/coffee-script.js
@@ -45,7 +45,7 @@
     if (root.moduleCache) {
       root.moduleCache = {};
     }
-    return root._compile(exports.compile(code, options), root.filename);
+    return path.extname(root.filename) !== '.coffee' || require.extensions ? root._compile(exports.compile(code, options), root.filename) : root._compile(code, root.filename);
   };
   exports.eval = function(code, options) {
     var __dirname, __filename;