diff --git a/docs/otg/rany.md b/docs/otg/rany.md
index 962b6e4..142a1d5 100644
--- a/docs/otg/rany.md
+++ b/docs/otg/rany.md
@@ -27,5 +27,6 @@ MTU = 1280
 PublicKey = $serverpubkey
 AllowedIPs = fd00::/8
 Endpoint = $serveraddr
+PersistentKeepalive = 25
 EOF
 ```