diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index a142d204b5260b7b89e2dd7154e8bb5992a97002..b875d445ea816463e65374f6b70dd98f14bf8318 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"