diff --git a/README.md b/README.md
index 5292dee..f8f4d73 100644
--- a/README.md
+++ b/README.md
@@ -205,6 +205,8 @@ port = 4242
 [right]
 # hostname
 hostname = "iridium"
+# activate this client immediately when lan-mouse is started
+activate_on_startup = true
 # optional list of (known) ip addresses
 ips = ["192.168.178.156"]