diff --git a/system/validation/rule.php b/system/validation/rule.php
index d3e79289..c70c9c12 100644
--- a/system/validation/rule.php
+++ b/system/validation/rule.php
@@ -1,5 +1,7 @@
 <?php namespace System\Validation;
 
+use System\Lang;
+
 abstract class Rule {
 
 	/**