diff --git a/includes/objects/contribution.php b/includes/objects/contribution.php
index bf193d7f2..9818f7db0 100644
--- a/includes/objects/contribution.php
+++ b/includes/objects/contribution.php
@@ -1488,7 +1488,7 @@ public function change_permalink($new_permalink)
 	*
 	* @return array Returns array containing any errors found.
 	*/
-	public function validate($contrib_categories = array(), $authors, $custom_fields, $old_permalink = '')
+	public function validate($contrib_categories, $authors, $custom_fields, $old_permalink = '')
 	{
 		phpbb::$user->add_lang('ucp');