diff --git a/src/Valitron/Validator.php b/src/Valitron/Validator.php
index 1d30e22..0e98596 100644
--- a/src/Valitron/Validator.php
+++ b/src/Valitron/Validator.php
@@ -86,7 +86,7 @@ class Validator
      * @param  string                    $langDir
      * @throws \InvalidArgumentException
      */
-    public function __construct($data, $fields = array(), $lang = null, $langDir = null)
+    public function __construct($data = array(), $fields = array(), $lang = null, $langDir = null)
     {
         // Allows filtering of used input fields against optional second array of field names allowed
         // This is useful for limiting raw $_POST or $_GET data to only known fields