diff --git a/.travis.yml b/.travis.yml
index dd1e738..a941551 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,5 +1,6 @@
 # see http://about.travis-ci.org/docs/user/languages/php/ for more hints
 language: php
+dist: precise
 
 # list any PHP version you want to test against
 php:
diff --git a/src/Valitron/Validator.php b/src/Valitron/Validator.php
index 77305fa..c629ca4 100644
--- a/src/Valitron/Validator.php
+++ b/src/Valitron/Validator.php
@@ -146,7 +146,7 @@ class Validator
      * @param  array  $params
      * @return bool
      */
-    protected function validateRequired($field, $value, array $params= array(), array $fields = array())
+    protected function validateRequired($field, $value, $params= array())
     {
         if (isset($params[0]) && (bool) $params[0]){
             $find = $this->getPart($this->_fields, explode('.', $field), true);