diff --git a/phpBB/includes/session.php b/phpBB/includes/session.php
index 118b969659..998b8be5f6 100644
--- a/phpBB/includes/session.php
+++ b/phpBB/includes/session.php
@@ -511,9 +511,6 @@ class session
 			$this->set_cookie('k', $this->cookie_data['k'], $cookie_expire);
 			$this->set_cookie('sid', $this->session_id, $cookie_expire);
 
-			$SID = '?sid=';
-			$_SID = '';
-
 			unset($cookie_expire);
 		}