diff --git a/Build.c b/Build.c
index ad59867..70ba068 100644
--- a/Build.c
+++ b/Build.c
@@ -24,10 +24,6 @@
 
 #include "mdadm.h"
 
-#define REGISTER_DEV		_IO (MD_MAJOR, 1)
-#define START_MD		_IO (MD_MAJOR, 2)
-#define STOP_MD			_IO (MD_MAJOR, 3)
-
 int Build(char *mddev, struct mddev_dev *devlist,
 	  struct shape *s, struct context *c)
 {
diff --git a/Manage.c b/Manage.c
index 14276b7..467efb7 100644
--- a/Manage.c
+++ b/Manage.c
@@ -27,10 +27,6 @@
 #include "md_p.h"
 #include <ctype.h>
 
-#define REGISTER_DEV		_IO (MD_MAJOR, 1)
-#define START_MD		_IO (MD_MAJOR, 2)
-#define STOP_MD			_IO (MD_MAJOR, 3)
-
 int Manage_ro(char *devname, int fd, int readonly)
 {
 	/* switch to readonly or rw