diff --git a/lib/krb5/krb5.conf.5 b/lib/krb5/krb5.conf.5
index a0d2983cd..1c76d973c 100644
--- a/lib/krb5/krb5.conf.5
+++ b/lib/krb5/krb5.conf.5
@@ -589,8 +589,6 @@ Specifies the digests the kdc will reply to. The default is
 .El
 .It Li [kadmin]
 .Bl -tag -width "xxx" -offset indent
-.It Li require-preauth = Va BOOL
-If pre-authentication is required to talk to the kadmin server.
 .It Li password_lifetime = Va time
 If a principal already have its password set for expiration, this is
 the time it will be valid for after a change.