diff --git a/drivers/mtd/mtdpart.c b/drivers/mtd/mtdpart.c
index 99395911d26f..29ed5abe70c4 100644
--- a/drivers/mtd/mtdpart.c
+++ b/drivers/mtd/mtdpart.c
@@ -400,6 +400,7 @@ int add_mtd_partitions(struct mtd_info *master,
 		slave->mtd.size = parts[i].size;
 		slave->mtd.oobblock = master->oobblock;
 		slave->mtd.oobsize = master->oobsize;
+		slave->mtd.oobavail = master->oobavail;
 		slave->mtd.ecctype = master->ecctype;
 		slave->mtd.eccsize = master->eccsize;