diff --git a/drivers/md/dm-table.c b/drivers/md/dm-table.c
index a63161a..04e5fd7 100644
--- a/drivers/md/dm-table.c
+++ b/drivers/md/dm-table.c
@@ -668,7 +668,7 @@
 	if (!rs->max_segment_size)
 		rs->max_segment_size = MAX_SEGMENT_SIZE;
 	if (!rs->seg_boundary_mask)
-		rs->seg_boundary_mask = -1;
+		rs->seg_boundary_mask = BLK_SEG_BOUNDARY_MASK;
 	if (!rs->bounce_pfn)
 		rs->bounce_pfn = -1;
 }