diff --git a/fs/cachefiles/rdwr.c b/fs/cachefiles/rdwr.c
index 1d83325..0f0d41f 100644
--- a/fs/cachefiles/rdwr.c
+++ b/fs/cachefiles/rdwr.c
@@ -10,6 +10,7 @@
  */
 
 #include <linux/mount.h>
+#include <linux/slab.h>
 #include <linux/file.h>
 #include "internal.h"