===================================================================
RCS file: /cvs/mandoc/mdoc.c,v
retrieving revision 1.32
retrieving revision 1.33
diff -u -p -r1.32 -r1.33
--- mandoc/mdoc.c	2009/01/16 14:04:26	1.32
+++ mandoc/mdoc.c	2009/01/16 15:58:50	1.33
@@ -1,4 +1,4 @@
-/* $Id: mdoc.c,v 1.32 2009/01/16 14:04:26 kristaps Exp $ */
+/* $Id: mdoc.c,v 1.33 2009/01/16 15:58:50 kristaps Exp $ */
 /*
  * Copyright (c) 2008 Kristaps Dzonsons <kristaps@kth.se>
  *
@@ -241,7 +241,8 @@ mdoc_alloc(void *data, const struct mdoc_cb *cb)
 	p = xcalloc(1, sizeof(struct mdoc));
 
 	p->data = data;
-	(void)memcpy(&p->cb, cb, sizeof(struct mdoc_cb));
+	if (cb)
+		(void)memcpy(&p->cb, cb, sizeof(struct mdoc_cb));
 
 	p->last = xcalloc(1, sizeof(struct mdoc_node));
 	p->last->type = MDOC_ROOT;