diff --git a/auth.h b/auth.h
index b235906..2160154 100644
--- a/auth.h
+++ b/auth.h
@@ -1,4 +1,4 @@
-/* $OpenBSD: auth.h,v 1.85 2015/11/11 01:48:01 djm Exp $ */
+/* $OpenBSD: auth.h,v 1.86 2015/12/04 16:41:28 markus Exp $ */
 
 /*
  * Copyright (c) 2000 Markus Friedl.  All rights reserved.
@@ -209,7 +209,7 @@
 int	 get_hostkey_index(Key *, int, struct ssh *);
 int	 ssh1_session_key(BIGNUM *);
 int	 sshd_hostkey_sign(Key *, Key *, u_char **, size_t *,
-	     const u_char *, size_t, u_int);
+	     const u_char *, size_t, const char *, u_int);
 
 /* debug messages during authentication */
 void	 auth_debug_add(const char *fmt,...) __attribute__((format(printf, 1, 2)));