diff --git a/drivers/md/dm.h b/drivers/md/dm.h
index 177297a..b4584a3 100644
--- a/drivers/md/dm.h
+++ b/drivers/md/dm.h
@@ -187,4 +187,6 @@
 int dm_open_count(struct mapped_device *md);
 int dm_lock_for_deletion(struct mapped_device *md);
 
+void dm_kobject_uevent(struct mapped_device *md);
+
 #endif