diff --git a/sys/arch/atari/stand/ahdilabel/check.c b/sys/arch/atari/stand/ahdilabel/check.c
index e9e1ea5cd77c..6e81f308c143 100644
--- a/sys/arch/atari/stand/ahdilabel/check.c
+++ b/sys/arch/atari/stand/ahdilabel/check.c
@@ -1,4 +1,4 @@
-/*	$NetBSD: check.c,v 1.1.1.1 2000/08/07 09:23:40 leo Exp $	*/
+/*	$NetBSD: check.c,v 1.2 2000/10/23 06:56:00 jdc Exp $	*/
 
 /*
  * Copyright (c) 1999 The NetBSD Foundation, Inc.
@@ -95,7 +95,7 @@ ahdi_checklabel (ptable)
 		i_end = ptable->parts[i].start + ptable->parts[i].size - 1;
 
 		/* Check partition does not extend past end of disk */
-		if (i_end > ptable->secperunit) {
+		if (i_end >= ptable->secperunit) {
 			ahdi_errp1 = i;
 			return (-5);
 		}