===================================================================
RCS file: /cvsrepo/anoncvs/cvs/src/usr.bin/mandoc/mdoc_validate.c,v
retrieving revision 1.205
retrieving revision 1.206
diff -u -r1.205 -r1.206
--- src/usr.bin/mandoc/mdoc_validate.c	2015/04/19 14:25:05	1.205
+++ src/usr.bin/mandoc/mdoc_validate.c	2015/04/20 09:48:19	1.206
@@ -1,4 +1,4 @@
-/*	$OpenBSD: mdoc_validate.c,v 1.205 2015/04/19 14:25:05 schwarze Exp $ */
+/*	$OpenBSD: mdoc_validate.c,v 1.206 2015/04/20 09:48:19 schwarze Exp $ */
 /*
  * Copyright (c) 2008-2012 Kristaps Dzonsons <kristaps@bsd.lv>
  * Copyright (c) 2010-2015 Ingo Schwarze <schwarze@openbsd.org>
@@ -1553,7 +1553,8 @@
 	/* Check that we begin with a proper `Sh'. */
 
 	n = mdoc->first->child;
-	while (n != NULL && mdoc_macros[n->tok].flags & MDOC_PROLOGUE)
+	while (n != NULL && n->tok != TOKEN_NONE &&
+	    mdoc_macros[n->tok].flags & MDOC_PROLOGUE)
 		n = n->next;
 
 	if (n == NULL)