diff --git a/lib/kafs/kafs.3 b/lib/kafs/kafs.3
index 715ef298e..3348095e7 100644
--- a/lib/kafs/kafs.3
+++ b/lib/kafs/kafs.3
@@ -163,6 +163,7 @@ Example:
 .Bd -literal
 [appdefaults]
 	SU.SE = { afs-use-524 = local }
+	PDC.KTH.SE = { afs-use-524 = yes }
 	afs-use-524 = yes
 .Ed
 .Pp
@@ -172,6 +173,9 @@ as application name when running the
 .Nm krb5_appdefault
 function call.
 .Pp
+The (uppercased) cellname is used as the realm to the
+.Nm krb5_appdefault function.
+.Pp
 .\" The extra arguments are the ubiquitous context, and the cache id where
 .\" to store any obtained tickets. Since AFS servers normally can't handle
 .\" Kerberos 5 tickets directly, these functions will first obtain version