diff --git a/fs/nfs/blocklayout/extent_tree.c b/fs/nfs/blocklayout/extent_tree.c
index 93193616205a6bc39d88addf6a5b3ac1b6fda237..31d0b5e53dfd8fc8883dd70cc9220c198882d02f 100644
--- a/fs/nfs/blocklayout/extent_tree.c
+++ b/fs/nfs/blocklayout/extent_tree.c
@@ -2,6 +2,8 @@
  * Copyright (c) 2014 Christoph Hellwig.
  */
 
+#include <linux/vmalloc.h>
+
 #include "blocklayout.h"
 
 #define NFSDBG_FACILITY		NFSDBG_PNFS_LD