diff --git a/lib/server/ncp.js b/lib/server/ncp.js
index 2d23ff2b..7e065e39 100644
--- a/lib/server/ncp.js
+++ b/lib/server/ncp.js
@@ -7,6 +7,8 @@ module.exports = ncp;
 ncp.ncp = ncp;
 
 function ncp (source, dest, options, callback) {
+  'use strict';
+  
   var cback = callback;
 
   if (!callback) {