diff --git a/lib/node-i18n.js b/lib/node-i18n.js
index f5de4c5..d152ba7 100644
--- a/lib/node-i18n.js
+++ b/lib/node-i18n.js
@@ -37,14 +37,16 @@ module.exports = function (options) {
     var self      = this
     this.options  = options
     this.words    = {}
-    this.files    = fs.readdirSync(this.options.dir)
+    this.files    = _.filter(fs.readdirSync(this.options.dir), function(file){
+      return /\.json$/.test(file);
+    });
 
     this.locales = function() { return self.options.enabled }
     
     this.load = function(){
       _.each(this.files, function(file){
-        fileContents = require(self.options.dir + '/' + file)
-        fileLocale = _.keys(fileContents)[0]
+        var fileContents = require(self.options.dir + '/' + file);
+        var fileLocale = _.keys(fileContents)[0];
         self.words[fileLocale] = _.extend(self.words[fileLocale] || {}, fileContents[fileLocale])
       })
       return this