diff --git a/libc/kernel/uapi/linux/tty.h b/libc/kernel/uapi/linux/tty.h
index fb2379e..dcce572 100644
--- a/libc/kernel/uapi/linux/tty.h
+++ b/libc/kernel/uapi/linux/tty.h
@@ -18,6 +18,7 @@
  ****************************************************************************/
 #ifndef _UAPI_LINUX_TTY_H
 #define _UAPI_LINUX_TTY_H
+#define NR_LDISCS 30
 #define N_TTY 0
 #define N_SLIP 1
 #define N_MOUSE 2
@@ -47,6 +48,4 @@
 #define N_SPEAKUP 26
 #define N_NULL 27
 #define N_MCTP 28
-#define N_DEVELOPMENT 29
-#define NR_LDISCS 30
 #endif