diff --git a/root/etc/NetworkManager/conf.d/wifi_rand_mac.conf b/root/etc/NetworkManager/conf.d/wifi_rand_mac.conf
index eac8fdc..631bbc5 100644
--- a/root/etc/NetworkManager/conf.d/wifi_rand_mac.conf
+++ b/root/etc/NetworkManager/conf.d/wifi_rand_mac.conf
@@ -10,5 +10,7 @@ wifi.cloned-mac-address=stable
 
 # Opions:
 # permanent: Use HardWare address
+# preserve: don’t change the MAC address of the device upon activation.
 # stable: Randomize once and associate it permanently with that network
 # random: Randomize MAC for every connection
+