diff --git a/doc/reference.conf b/doc/reference.conf
index 8e770a82..22ba0160 100644
--- a/doc/reference.conf
+++ b/doc/reference.conf
@@ -1412,6 +1412,9 @@ general {
 
 	/* tls_ciphers_oper_only: show the TLS cipher string in /WHOIS only to opers and self */
 	tls_ciphers_oper_only = no;
+
+	/* hidden_caps: client capabilities we'll pretend we don't support until they're requested */
+	#hidden_caps = "userhost-in-names";
 };
 
 modules {