diff --git a/en_US.ISO8859-1/books/porters-handbook/book.sgml b/en_US.ISO8859-1/books/porters-handbook/book.sgml
index a011ba7ad1..0941df278b 100644
--- a/en_US.ISO8859-1/books/porters-handbook/book.sgml
+++ b/en_US.ISO8859-1/books/porters-handbook/book.sgml
@@ -7738,6 +7738,10 @@ Reference: <http://www.freebsd.org/ports/portaudit/74a9541d-5d6c-11d8-80e3-00
6.0-CURRENT after EOVERFLOW checks in vswprintf(3) fixed.
600014
+
+ 6.0-CURRENT after LC_CTYPE disk format changed.
+ 600016
+