diff --git a/network-adhoc/modules/ROOT/pages/index-setup.adoc b/network-adhoc/modules/ROOT/pages/index-setup.adoc
index 9349224..e3b7a74 100644
--- a/network-adhoc/modules/ROOT/pages/index-setup.adoc
+++ b/network-adhoc/modules/ROOT/pages/index-setup.adoc
@@ -39,6 +39,16 @@ apt-mark hold avahi-daemon dhcpcd dhcpcd5 ifupdown isc-dhcp-client isc-dhcp-comm
 systemctl enable systemd-networkd.service systemd-resolved.service
 ----
 
+
+== Install optional
+
+[source,sh]
+----
+apt-get install raspberrypi-kernel-headers -y
+----
+
+
+
 === setup wired connection
 
 *wired connection*