diff --git a/modules/luci-mod-network/htdocs/luci-static/resources/view/network/interfaces.js b/modules/luci-mod-network/htdocs/luci-static/resources/view/network/interfaces.js
index 5fad6f343fa9..67a849a9ee88 100644
--- a/modules/luci-mod-network/htdocs/luci-static/resources/view/network/interfaces.js
+++ b/modules/luci-mod-network/htdocs/luci-static/resources/view/network/interfaces.js
@@ -1220,11 +1220,12 @@ return view.extend({
 					o = nettools.replaceOption(s, 'advanced', form.RichListValue, 'multipath', _('Multi-Path TCP'),
 						_('Multi-Path TCP') + ' %s'.format('<a href="%s" target="_blank">RFC8684</a>').format('https://www.rfc-editor.org/rfc/rfc8684.html') + '<br/>' +
 						_('For packets originating from this device, e.g. VPN.') );
-					o.value('off', _('Off'), _('Disables this interface for MPTCP'));
+					o.value('', _('Off'), _('Disables this interface for MPTCP'));
 					o.value('on', _('On'), _('No special configuration'));
 					o.value('master', _('Master'), _('Sets default route for all traffic'));
 					o.value('backup', _('Backup'), _('Hot standby; use this interface; do not forward traffic until no other interface is available (faster)'));
 					o.value('handover', _('Handover'), _('Cold standby; Establish a connection only when no other interface is available (slower)'));
+					o.optional = true;
 				}
 
 				o = nettools.replaceOption(s, 'advanced', form.Value, 'ip4table', _('Override IPv4 routing table'));