diff --git a/kexgexc.c b/kexgexc.c
index cd11287..6f8cf48 100644
--- a/kexgexc.c
+++ b/kexgexc.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: kexgexc.c,v 1.25 2017/05/30 14:23:52 markus Exp $ */
+/* $OpenBSD: kexgexc.c,v 1.26 2017/12/18 02:25:15 djm Exp $ */
 /*
  * Copyright (c) 2000 Niels Provos.  All rights reserved.
  * Copyright (c) 2001 Markus Friedl.  All rights reserved.
@@ -230,7 +230,7 @@
 		goto out;
 
 	if ((r = sshkey_verify(server_host_key, signature, slen, hash,
-	    hashlen, ssh->compat)) != 0)
+	    hashlen, kex->hostkey_alg, ssh->compat)) != 0)
 		goto out;
 
 	/* save session id */