--- parted-1.8.6/libparted/labels/dos.c.orig	2007-03-13 18:01:09.000000000 +0100
+++ parted-1.8.6/libparted/labels/dos.c	2007-05-04 12:42:07.000000000 +0200
@@ -510,7 +510,7 @@
 	PedSector c, h, s, a, a_;	/* start */
 	PedSector C, H, S, A, A_;	/* end */
 	PedSector dont_overflow, denum;
-	PedSector cyl_size, head_size;
+	PedSector cyl_size, head_size=0;
 	PedSector cylinders, heads, sectors;
 
 	PED_ASSERT (part != NULL, return 0);