diff --git a/lib/krb5/krb5.h b/lib/krb5/krb5.h
index 66c6469c8..1dc169839 100644
--- a/lib/krb5/krb5.h
+++ b/lib/krb5/krb5.h
@@ -106,6 +106,7 @@ enum {
     ENCTYPE_DES3_CBC_SHA1	= ETYPE_DES3_CBC_SHA1,
     ENCTYPE_AES128_CTS_HMAC_SHA1_96 = ETYPE_AES128_CTS_HMAC_SHA1_96,
     ENCTYPE_AES256_CTS_HMAC_SHA1_96 = ETYPE_AES256_CTS_HMAC_SHA1_96,
+    ENCTYPE_ARCFOUR_HMAC	= ETYPE_ARCFOUR_HMAC_MD5,
     ENCTYPE_ARCFOUR_HMAC_MD5	= ETYPE_ARCFOUR_HMAC_MD5,
     ENCTYPE_ARCFOUR_HMAC_MD5_56	= ETYPE_ARCFOUR_HMAC_MD5_56,
     ENCTYPE_ENCTYPE_PK_CROSS	= ETYPE_ENCTYPE_PK_CROSS,