diff --git a/libc/kernel/arch-x86/asm/i8253.h b/libc/kernel/arch-x86/asm/i8253.h
index 576a356..93b1d1a 100644
--- a/libc/kernel/arch-x86/asm/i8253.h
+++ b/libc/kernel/arch-x86/asm/i8253.h
@@ -7,19 +7,13 @@
  ***   structures, and macros generated from the original header, and thus,
  ***   contains no copyrightable information.
  ***
- ***   To edit the content of this header, modify the corresponding
- ***   source file (e.g. under external/kernel-headers/original/) then
- ***   run bionic/libc/kernel/tools/update_all.py
- ***
- ***   Any manual change here will be lost the next time this script will
- ***   be run. You've been warned!
- ***
  ****************************************************************************
  ****************************************************************************/
 #ifndef __ASM_I8253_H__
 #define __ASM_I8253_H__
+
 #define PIT_MODE 0x43
 #define PIT_CH0 0x40
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define PIT_CH2 0x42
+
 #endif