diff --git a/init/do_mounts_md.c b/init/do_mounts_md.c
index 4c87ee1fe5d3..4d42f450b590 100644
--- a/init/do_mounts_md.c
+++ b/init/do_mounts_md.c
@@ -1,4 +1,4 @@
-
+#include <linux/delay.h>
 #include <linux/raid/md.h>
 #include <linux/delay.h>