diff --git a/lib/index.js b/lib/index.js
index 1364cd8..22f7855 100644
--- a/lib/index.js
+++ b/lib/index.js
@@ -2,7 +2,7 @@
 /// https://github.com/samsonjs/strftime
 /// @_sjs
 ///
-/// Copyright 2010 Sami Samhuri <sami.samhuri@gmail.com>
+/// Copyright 2010 - 2011 Sami Samhuri <sami.samhuri@gmail.com>
 /// MIT License
 
 ;(function() {
@@ -41,6 +41,7 @@
         }
         d = d || new Date();
         locale = locale || DefaultLocale;
+        locale.formats = locale.formats || {}
 
         // Most of the specifiers supported by C's strftime
         return fmt.replace(/%(.)/g, function(_, c) {