diff --git a/_include/include_logout.php b/_include/include_logout.php
index ee11ca8..1798276 100644
--- a/_include/include_logout.php
+++ b/_include/include_logout.php
@@ -15,7 +15,7 @@ elseif ($from == 'coach') {
 	
 }
 log::register($log_c, $_COOKIE['badminton_'.$cookie.'_user']);
-setcookie('badminton_'.$from.'_user', 'null', time()-60*60*72, '/');
+setcookie('badminton_'.$cookie.'_user', 'null', time()-60*60*72, '/');
 unset($_COOKIE['badminton_'.$cookie.'_user']);
 header('Location: http://' . $_SERVER['HTTP_HOST'] . '/' . $from);