diff --git a/etc/inc/openvpn.inc b/etc/inc/openvpn.inc
index 8ec2e5b070..457f4927f0 100644
--- a/etc/inc/openvpn.inc
+++ b/etc/inc/openvpn.inc
@@ -441,6 +441,8 @@ EOD;
 
 	if ($settings['use_lzo']) $openvpn_conf .= "comp-lzo\n";
 
+	if ($settings['passtos']) $openvpn_conf .= "passtos\n";
+
 	if ($settings['dynamic_ip']) {
 		$openvpn_conf .= "persist-remote-ip\n";
 		$openvpn_conf .= "float\n";
@@ -655,4 +657,4 @@ function openvpn_print_javascript2() {
 EOD;
 	print($javascript);
 }
-?>
\ No newline at end of file
+?>
diff --git a/usr/local/pkg/openvpn.xml b/usr/local/pkg/openvpn.xml
index ab90599781..71511abdd9 100644
--- a/usr/local/pkg/openvpn.xml
+++ b/usr/local/pkg/openvpn.xml
@@ -284,6 +284,12 @@
 			<description>The maximum number of concurrently connected clients we want to allow.</description>
 			<type>input</type>
 		</field>
+		<field>
+			<fieldname>passtos</fieldname>
+			<fielddescr>Pass Type-Of-Service</fielddescr>
+			<description>Checking this will set the TOS field of the tunnel packet to what the payload's TOS is.</description>
+			<type>checkbox</type>
+		</field>
 		<field>
 			<fieldname>custom_options</fieldname>
 			<fielddescr>Custom options</fielddescr>
diff --git a/usr/local/pkg/openvpn_cli.xml b/usr/local/pkg/openvpn_cli.xml
index d199a7715c..3495f40124 100644
--- a/usr/local/pkg/openvpn_cli.xml
+++ b/usr/local/pkg/openvpn_cli.xml
@@ -195,6 +195,12 @@
 			<description>Checking this will let the openvpn client choose a dynamic sourceport for this connection.</description>
 			<type>checkbox</type>
 		</field>
+		<field>
+			<fieldname>passtos</fieldname>
+			<fielddescr>Pass Type-Of-Service</fielddescr>
+			<description>Checking this will set the TOS field of the tunnel packet to what the payload's TOS is.</description>
+			<type>checkbox</type>
+		</field>
 		<field>
 			<fieldname>custom_options</fieldname>
 			<fielddescr>Custom options</fielddescr>