diff --git a/fs/ceph/snap.c b/fs/ceph/snap.c
index df04e21..e6f9bc5 100644
--- a/fs/ceph/snap.c
+++ b/fs/ceph/snap.c
@@ -1,6 +1,7 @@
 #include "ceph_debug.h"
 
 #include <linux/sort.h>
+#include <linux/slab.h>
 
 #include "super.h"
 #include "decode.h"