diff --git a/en_US.ISO8859-1/books/porters-handbook/book.sgml b/en_US.ISO8859-1/books/porters-handbook/book.sgml
index 7d7972d1ef..592989665a 100644
--- a/en_US.ISO8859-1/books/porters-handbook/book.sgml
+++ b/en_US.ISO8859-1/books/porters-handbook/book.sgml
@@ -7749,6 +7749,10 @@ Reference: <http://www.freebsd.org/ports/portaudit/74a9541d-5d6c-11d8-80e3-00
 		    <entry>6.0-CURRENT after LC_CTYPE disk format changed.</entry>
 		    <entry>600016</entry>
 		  </row>
+		  <row>
+		    <entry>6.0-CURRENT after NLS catalogs disk format changed.</entry>
+		    <entry>600017</entry>
+		  </row>
 		  <row>
 		    <entry>6.0-CURRENT after LC_COLLATE disk format changed.</entry>
 		    <entry>600018</entry>