diff --git a/image-hd.c b/image-hd.c
index 274c6ac..dee47f5 100644
--- a/image-hd.c
+++ b/image-hd.c
@@ -1055,6 +1055,7 @@ static int hdimage_setup(struct image *image, cfg_t *cfg)
 			list_add_tail(&gpt_header->list, &image->partitions);
 			list_add_tail(&gpt_array->list, &image->partitions);
 			now = partition_end(gpt_array);
+			hd->file_size = now;
 
 			/* Includes both the backup header and array. */
 			backup_size = GPT_SECTORS * 512;