diff --git a/libc/kernel/common/linux/max9635.h b/libc/kernel/common/linux/max9635.h
index e696fa9..563100e 100644
--- a/libc/kernel/common/linux/max9635.h
+++ b/libc/kernel/common/linux/max9635.h
@@ -7,17 +7,22 @@
  ***   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 _LINUX_MAX9635_H__
 #define _LINUX_MAX9635_H__
-
 #define MAX9635_NAME "MAX9635_als"
 #define FOPS_MAX9635_NAME "MAX9635"
-
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define MAX9635_IO 0xA3
-
 #define MAX9635_IOCTL_GET_ENABLE _IOR(MAX9635_IO, 0x00, char)
 #define MAX9635_IOCTL_SET_ENABLE _IOW(MAX9635_IO, 0x01, char)
-
 #endif
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */