diff --git a/libc/kernel/uapi/linux/tty.h b/libc/kernel/uapi/linux/tty.h
index 05347a3..c26e836 100644
--- a/libc/kernel/uapi/linux/tty.h
+++ b/libc/kernel/uapi/linux/tty.h
@@ -51,4 +51,5 @@
 #define N_TRACESINK 23
 #define N_TRACEROUTER 24
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define N_NCI 25
 #endif