diff --git a/jekyll/testserver.js b/jekyll/testserver.js
index 4a0c9ad..f7bb272 100644
--- a/jekyll/testserver.js
+++ b/jekyll/testserver.js
@@ -9,7 +9,7 @@ http.createServer(function(request, response) {
   var uri = url.parse(request.url).pathname
     , filename = path.join(process.cwd(), uri).replace('nwtui/nwt', 'nwtui/_site');
 console.log('Filename is:', filename);
-  path.exists(filename, function(exists) {
+  fs.exists(filename, function(exists) {
     if(!exists) {
       response.writeHead(404, {"Content-Type": "text/plain"});
       response.write("404 Not Found\n");