diff --git a/src/usr/local/www/firewall_nat_out_edit.php b/src/usr/local/www/firewall_nat_out_edit.php
index db2b6846a2..d85b278c4c 100644
--- a/src/usr/local/www/firewall_nat_out_edit.php
+++ b/src/usr/local/www/firewall_nat_out_edit.php
@@ -607,10 +607,9 @@ $group->addClass('natportgrp');
 $group->add(new Form_Input(
 	'natport',
 	null,
-	'number',
-	$pconfig['natport'],
-	['min' => '1', 'max' => '65536']
-))->setHelp('Enter the source port for the outbound NAT mapping.');
+	'text',
+	$pconfig['natport']
+))->setHelp('Enter the source port or range for the outbound NAT mapping.');
 
 $group->add(new Form_Checkbox(
 	'staticnatport',