diff --git a/ssh-gss.h b/ssh-gss.h
index e0905b3..36180d0 100644
--- a/ssh-gss.h
+++ b/ssh-gss.h
@@ -1,4 +1,4 @@
-/* $OpenBSD: ssh-gss.h,v 1.13 2018/07/10 06:43:52 djm Exp $ */
+/* $OpenBSD: ssh-gss.h,v 1.14 2018/07/10 09:13:30 djm Exp $ */
 /*
  * Copyright (c) 2001-2003 Simon Wilkinson. All rights reserved.
  *
@@ -107,6 +107,9 @@
 void ssh_gssapi_prepare_supported_oids(void);
 OM_uint32 ssh_gssapi_test_oid_supported(OM_uint32 *, gss_OID, int *);
 
+struct sshbuf;
+int ssh_gssapi_get_buffer_desc(struct sshbuf *, gss_buffer_desc *);
+
 OM_uint32 ssh_gssapi_import_name(Gssctxt *, const char *);
 OM_uint32 ssh_gssapi_init_ctx(Gssctxt *, int,
     gss_buffer_desc *, gss_buffer_desc *, OM_uint32 *);