diff --git a/interface/web/admin/form/firewall.tform.php b/interface/web/admin/form/firewall.tform.php
index 0bef6ebcc0b16066dff4ad061087e8972f62a21a..ce7d2dbd09f1c891a78a17471e18b27f9fc906e2 100644
--- a/interface/web/admin/form/firewall.tform.php
+++ b/interface/web/admin/form/firewall.tform.php
@@ -79,7 +79,7 @@ $form["tabs"]['firewall'] = array (
 					'regex' => '/^[\s0-9\,\:]{0,255}$/',
 					'errmsg'=> 'tcp_ports_error_regex'),
 			),
-			'default' => '20,21,22,25,53,80,110,143,443,993,995,3306,8080,8081,10000',
+			'default' => '20,21,22,25,53,80,110,143,443,587,993,995,3306,8080,8081,10000',
 			'value'  => '',
 			'width'  => '30',
 			'maxlength' => '255'