diff --git a/channels.c b/channels.c
index d227379..c9df9ba 100644
--- a/channels.c
+++ b/channels.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: channels.c,v 1.326 2013/09/19 01:24:46 djm Exp $ */
+/* $OpenBSD: channels.c,v 1.327 2013/11/08 00:39:15 djm Exp $ */
 /*
  * Author: Tatu Ylonen <ylo@cs.hut.fi>
  * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
@@ -704,7 +704,7 @@
 	if ((c = channel_lookup(id)) == NULL)
 		fatal("channel_register_expect: %d: bad id", id);
 
-	cc = xmalloc(sizeof(*cc));
+	cc = xcalloc(1, sizeof(*cc));
 	cc->cb = cb;
 	cc->abandon_cb = abandon_cb;
 	cc->ctx = ctx;