diff --git a/fs/hostfs/hostfs_kern.c b/fs/hostfs/hostfs_kern.c
index d0549cb..5222345 100644
--- a/fs/hostfs/hostfs_kern.c
+++ b/fs/hostfs/hostfs_kern.c
@@ -12,6 +12,7 @@
 #include <linux/pagemap.h>
 #include <linux/statfs.h>
 #include <linux/seq_file.h>
+#include <linux/mount.h>
 #include "hostfs.h"
 #include "init.h"
 #include "kern.h"