diff --git a/fs/ceph/buffer.c b/fs/ceph/buffer.c
index b98086c..c67535d 100644
--- a/fs/ceph/buffer.c
+++ b/fs/ceph/buffer.c
@@ -1,5 +1,8 @@
 
 #include "ceph_debug.h"
+
+#include <linux/slab.h>
+
 #include "buffer.h"
 #include "decode.h"