diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index 4acd4c611efa6a8f4659996867982e294ac4492d..0cb322cc4fc06dbe167ce3dc29da59f44eeee501 100644
--- a/fs/btrfs/ctree.h
+++ b/fs/btrfs/ctree.h
@@ -27,6 +27,7 @@
 #include <linux/backing-dev.h>
 #include <linux/wait.h>
 #include <linux/slab.h>
+#include <linux/kobject.h>
 #include <asm/kmap_types.h>
 #include "extent_io.h"
 #include "extent_map.h"