diff --git a/lib/asn1/k5.asn1 b/lib/asn1/k5.asn1
index efd1f1172..1660243f9 100644
--- a/lib/asn1/k5.asn1
+++ b/lib/asn1/k5.asn1
@@ -154,6 +154,7 @@ KDCOptions ::= BIT STRING {
 	unused10(10),
 	unused11(11),
 	request-anonymous(14),
+	canonicalize(15),
 	disable-transited-check(26),
 	renewable-ok(27),
 	enc-tkt-in-skey(28),