diff --git a/fs/ceph/super.c b/fs/ceph/super.c
index 4290a6e..75d02ea 100644
--- a/fs/ceph/super.c
+++ b/fs/ceph/super.c
@@ -11,6 +11,7 @@
 #include <linux/rwsem.h>
 #include <linux/sched.h>
 #include <linux/seq_file.h>
+#include <linux/slab.h>
 #include <linux/statfs.h>
 #include <linux/string.h>
 #include <linux/version.h>