diff --git a/lib/krb5/krb5.h b/lib/krb5/krb5.h
index 503de55a4..cc7741898 100644
--- a/lib/krb5/krb5.h
+++ b/lib/krb5/krb5.h
@@ -735,6 +735,12 @@ enum {
     KRB5_PRINCIPAL_PARSE_MUST_REALM = 2,
 };
 
+/* flags for krb5_unparse_name_flags */
+enum {
+    KRB5_PRINCIPAL_UNPARSE_SHORT = 1,
+    KRB5_PRINCIPAL_UNPARSE_NO_REALM = 2
+};
+
 struct credentials; /* this is to keep the compiler happy */
 struct getargs;
 struct sockaddr;