diff --git a/lib/server/flop.js b/lib/server/flop.js
index 739a5810..6c8bfe59 100644
--- a/lib/server/flop.js
+++ b/lib/server/flop.js
@@ -3,6 +3,7 @@
  */
 
 (function() {
+    'use strict';
     
     var fs          = require('fs'),
         DIR         = './',