diff --git a/src/etc/inc/filter.lib.inc b/src/etc/inc/filter.lib.inc
index 777119204..c6fdf7cd1 100644
--- a/src/etc/inc/filter.lib.inc
+++ b/src/etc/inc/filter.lib.inc
@@ -117,10 +117,10 @@ function filter_core_antilockout_ports()
             $lockout_ports[] = empty($config['system']['ssh']['port']) ? "22" : $config['system']['ssh']['port'];
         }
     }
+    sort($lockout_ports);
     return $lockout_ports;
 }
 
-
 /**
  * recursively collect port alias(es) contents
  * @param $aliasname string alias name or null to fetch all aliases