diff --git a/sys/kern/makesyscalls.sh b/sys/kern/makesyscalls.sh
index f204f210cd9c..f8e2726c3171 100644
--- a/sys/kern/makesyscalls.sh
+++ b/sys/kern/makesyscalls.sh
@@ -77,21 +77,27 @@ s/\$//g
 
 		printf "/*\n * System call switch table.\n *\n" > syssw
 		printf " * DO NOT EDIT-- this file is automatically generated.\n" > syssw
+		printf " * \$\FreeBSD\$\n" > syssw
 
 		printf "/*\n * System call prototypes.\n *\n" > sysarg
 		printf " * DO NOT EDIT-- this file is automatically generated.\n" > sysarg
+		printf " * \$\FreeBSD\$\n" > sysarg
 
 		printf "\n#ifdef %s\n\n", compat > syscompat
 
 		printf "/*\n * System call names.\n *\n" > sysnames
 		printf " * DO NOT EDIT-- this file is automatically generated.\n" > sysnames
+		printf " * \$\FreeBSD\$\n" > sysnames
 
 		printf "/*\n * System call numbers.\n *\n" > syshdr
 		printf " * DO NOT EDIT-- this file is automatically generated.\n" > syshdr
+		printf " * \$\FreeBSD\$\n" > syshdr
 		printf "# FreeBSD system call names.\n" > sysmk
 		printf "# DO NOT EDIT-- this file is automatically generated.\n" > sysmk
+		printf "# \$\FreeBSD\$\n" > sysmk
 		printf "/*\n * System call hiders.\n *\n" > syshide
 		printf " * DO NOT EDIT-- this file is automatically generated.\n" > syshide
+		printf " * \$\FreeBSD\$\n" > syshide
 	}
 	NR == 1 {
 		gsub("[$]FreeBSD: ", "", $0)