diff --git a/fs/ntfs/compress.c b/fs/ntfs/compress.c
index 08f7530..6551c7c 100644
--- a/fs/ntfs/compress.c
+++ b/fs/ntfs/compress.c
@@ -25,6 +25,7 @@
 #include <linux/buffer_head.h>
 #include <linux/blkdev.h>
 #include <linux/vmalloc.h>
+#include <linux/slab.h>
 
 #include "attrib.h"
 #include "inode.h"