1 files changed, 2 insertions, 1 deletions

diff --git a/drivers/mtd/ubi/fastmap.c b/drivers/mtd/ubi/fastmap.c
index c701369090fb..cfd5b5e90156 100644
--- a/drivers/mtd/ubi/fastmap.c
+++ b/drivers/mtd/ubi/fastmap.c
@@ -24,7 +24,8 @@ size_t ubi_calc_fm_size(struct ubi_device *ubi)
 {
         size_t size;
 
-        size = sizeof(struct ubi_fm_hdr) + \
+        size = sizeof(struct ubi_fm_sb) + \
+                sizeof(struct ubi_fm_hdr) + \
                 sizeof(struct ubi_fm_scan_pool) + \
                 sizeof(struct ubi_fm_scan_pool) + \
                 (ubi->peb_count * sizeof(struct ubi_fm_ec)) + \