diff --git a/src/www/firewall_rules_edit.php b/src/www/firewall_rules_edit.php
index 87665c346..36ba873a9 100644
--- a/src/www/firewall_rules_edit.php
+++ b/src/www/firewall_rules_edit.php
@@ -287,7 +287,7 @@ if ($_SERVER['REQUEST_METHOD'] === 'GET') {
         }
     }
 
-    if (is_ipaddr($pconfig['src']) && is_ipaddr($pconfig['dst']) && !validate_address_family($pconfig['src'], $pconfig['dst'])) {
+    if (is_ipaddr($pconfig['src']) && is_ipaddr($pconfig['dst'])) {
         if ((is_ipaddrv4($pconfig['src']) && is_ipaddrv6($pconfig['dst'])) || (is_ipaddrv6($pconfig['src']) && is_ipaddrv4($pconfig['dst']))) {
             $input_errors[] = sprintf(gettext("The Source IP address %s Address Family differs from the destination %s."), $pconfig['src'], $pconfig['dst']);
         }