diff --git a/fs/9p/vfs_super.c b/fs/9p/vfs_super.c
index 8eb9263..7bdf8b3 100644
--- a/fs/9p/vfs_super.c
+++ b/fs/9p/vfs_super.c
@@ -36,6 +36,7 @@
 #include <linux/seq_file.h>
 #include <linux/mount.h>
 #include <linux/idr.h>
+#include <linux/sched.h>
 
 #include "debug.h"
 #include "v9fs.h"