diff --git a/lib/asn1/k5.asn1 b/lib/asn1/k5.asn1
index 691da49c5..0701e9f76 100644
--- a/lib/asn1/k5.asn1
+++ b/lib/asn1/k5.asn1
@@ -137,6 +137,10 @@ ENCTYPE ::= INTEGER {
 	ETYPE_ARCFOUR_HMAC_MD5(23),
 	ETYPE_ARCFOUR_HMAC_MD5_56(24),
 	ETYPE_ENCTYPE_PK_CROSS(48),
+-- some "old" windows types
+	ETYPE_ARCFOUR_MD4(-128),
+	ETYPE_ARCFOUR_HMAC_OLD(-133),
+	ETYPE_ARCFOUR_HMAC_OLD_EXP(-135),
 -- these are for Heimdal internal use
 	ETYPE_DES_CBC_NONE(-0x1000),
 	ETYPE_DES3_CBC_NONE(-0x1001),