--- a/Model/Tag.php	Fri Nov 25 18:55:42 2011 +0100
+++ b/Model/Tag.php	Sun Nov 27 22:36:21 2011 +0100
@@ -427,12 +427,12 @@
         $alternative_pageid = array_key_exists('alternative_pageid', $wikipedia_info) ? $wikipedia_info['alternative_pageid'] : null;
         
         # We save the datas
-        if($new_label!=null)
+        if(! is_null($new_label))
         {
             $this->setLabel($new_label);
         }
         
-        if($status!=null)
+        if(! is_null($status))
         {
             $this->setUrlStatus($status);
         }