diff --git a/include/class.validator.php b/include/class.validator.php
index a380bd45d4654edd36dd2090d22b14ed7a193894..c5cd2283eb362a58325e6291a3d2c5f245816116 100644
--- a/include/class.validator.php
+++ b/include/class.validator.php
@@ -144,7 +144,8 @@ class Validator {
         if (strpos($email, '@') === false)
             return false;
 
-        require_once PEAR_DIR.'Mail/RFC822.php';
+        require_once 'Mail/RFC822.php';
+        require_once 'PEAR.php';
         return !PEAR::isError(Mail_RFC822::parseAddressList($email));
     }
     function is_phone($phone) {