diff --git a/libc/kernel/common/linux/hidraw.h b/libc/kernel/common/linux/hidraw.h
index 0681ece..c776ce5 100644
--- a/libc/kernel/common/linux/hidraw.h
+++ b/libc/kernel/common/linux/hidraw.h
@@ -7,35 +7,39 @@
  ***   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 _HIDRAW_H
 #define _HIDRAW_H
-
 #include <linux/hid.h>
 #include <linux/types.h>
-
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 struct hidraw_report_descriptor {
  __u32 size;
  __u8 value[HID_MAX_DESCRIPTOR_SIZE];
 };
-
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 struct hidraw_devinfo {
  __u32 bustype;
  __s16 vendor;
  __s16 product;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 };
-
 #define HIDIOCGRDESCSIZE _IOR('H', 0x01, int)
 #define HIDIOCGRDESC _IOR('H', 0x02, struct hidraw_report_descriptor)
 #define HIDIOCGRAWINFO _IOR('H', 0x03, struct hidraw_devinfo)
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define HIDIOCGRAWNAME(len) _IOC(_IOC_READ, 'H', 0x04, len)
 #define HIDIOCGRAWPHYS(len) _IOC(_IOC_READ, 'H', 0x05, len)
-
 #define HIDRAW_FIRST_MINOR 0
 #define HIDRAW_MAX_DEVICES 64
-
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define HIDRAW_BUFFER_SIZE 64
-
 #endif
-