diff --git a/libc/kernel/common/linux/vt.h b/libc/kernel/common/linux/vt.h
index 9992b3a..b3f9090 100644
--- a/libc/kernel/common/linux/vt.h
+++ b/libc/kernel/common/linux/vt.h
@@ -7,62 +7,72 @@
  ***   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_VT_H
 #define _LINUX_VT_H
-
 #define MIN_NR_CONSOLES 1  
 #define MAX_NR_CONSOLES 63  
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define MAX_NR_USER_CONSOLES 63  
-
 #define VT_OPENQRY 0x5600  
-
 struct vt_mode {
  char mode;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
  char waitv;
  short relsig;
  short acqsig;
  short frsig;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 };
 #define VT_GETMODE 0x5601  
 #define VT_SETMODE 0x5602  
 #define VT_AUTO 0x00  
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define VT_PROCESS 0x01  
 #define VT_ACKACQ 0x02  
-
 struct vt_stat {
  unsigned short v_active;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
  unsigned short v_signal;
  unsigned short v_state;
 };
 #define VT_GETSTATE 0x5603  
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define VT_SENDSIG 0x5604  
-
 #define VT_RELDISP 0x5605  
-
 #define VT_ACTIVATE 0x5606  
 #define VT_WAITACTIVE 0x5607  
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define VT_DISALLOCATE 0x5608  
-
 struct vt_sizes {
  unsigned short v_rows;
  unsigned short v_cols;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
  unsigned short v_scrollsize;
 };
 #define VT_RESIZE 0x5609  
-
 struct vt_consize {
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
  unsigned short v_rows;
  unsigned short v_cols;
  unsigned short v_vlin;
  unsigned short v_clin;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
  unsigned short v_vcol;
  unsigned short v_ccol;
 };
 #define VT_RESIZEX 0x560A  
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define VT_LOCKSWITCH 0x560B  
 #define VT_UNLOCKSWITCH 0x560C  
 #define VT_GETHIFONTMASK 0x560D  
-
 #endif
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */