diff --git a/fs/ntfs/dir.c b/fs/ntfs/dir.c
index 9173e82..fe44d3f 100644
--- a/fs/ntfs/dir.c
+++ b/fs/ntfs/dir.c
@@ -21,6 +21,7 @@
  */
 
 #include <linux/buffer_head.h>
+#include <linux/slab.h>
 
 #include "dir.h"
 #include "aops.h"