diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c
index a88aeb5..76d1fc9 100644
--- a/drivers/md/raid10.c
+++ b/drivers/md/raid10.c
@@ -1130,6 +1130,7 @@
 			spin_lock_irqsave(&conf->device_lock, flags);
 			mddev->degraded--;
 			spin_unlock_irqrestore(&conf->device_lock, flags);
+			sysfs_notify_dirent(tmp->rdev->sysfs_state);
 		}
 	}