diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c
index 656fae9..b3c5e12 100644
--- a/drivers/md/raid1.c
+++ b/drivers/md/raid1.c
@@ -1951,6 +1951,7 @@
 		    !test_bit(In_sync, &disk->rdev->flags)) {
 			disk->head_position = 0;
 			mddev->degraded++;
+			conf->fullsync = 1;
 		}
 	}
 	if (mddev->degraded == conf->raid_disks) {