diff --git a/libc/kernel/common/linux/net.h b/libc/kernel/common/linux/net.h
index 29fca2c..c9bd9f3 100644
--- a/libc/kernel/common/linux/net.h
+++ b/libc/kernel/common/linux/net.h
@@ -7,45 +7,53 @@
  ***   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_NET_H
 #define _LINUX_NET_H
-
 #include <linux/wait.h>
 #include <asm/socket.h>
-
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 struct poll_table_struct;
 struct inode;
-
 #define NPROTO 32  
-
 #define SYS_SOCKET 1  
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define SYS_BIND 2  
 #define SYS_CONNECT 3  
 #define SYS_LISTEN 4  
 #define SYS_ACCEPT 5  
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define SYS_GETSOCKNAME 6  
 #define SYS_GETPEERNAME 7  
 #define SYS_SOCKETPAIR 8  
 #define SYS_SEND 9  
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define SYS_RECV 10  
 #define SYS_SENDTO 11  
 #define SYS_RECVFROM 12  
 #define SYS_SHUTDOWN 13  
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define SYS_SETSOCKOPT 14  
 #define SYS_GETSOCKOPT 15  
 #define SYS_SENDMSG 16  
 #define SYS_RECVMSG 17  
-
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 typedef enum {
  SS_FREE = 0,
  SS_UNCONNECTED,
  SS_CONNECTING,
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
  SS_CONNECTED,
  SS_DISCONNECTING
 } socket_state;
-
 #define __SO_ACCEPTCON (1 << 16)  
-
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #endif