diff --git a/en_US.ISO8859-1/books/porters-handbook/book.sgml b/en_US.ISO8859-1/books/porters-handbook/book.sgml
index bac527b601..9581fe21dd 100644
--- a/en_US.ISO8859-1/books/porters-handbook/book.sgml
+++ b/en_US.ISO8859-1/books/porters-handbook/book.sgml
@@ -1,7 +1,7 @@
5.0-CURRENT after KSE Milestone 2.
500023
+
+
+ 5.0-CURRENT after d_thread_t.
+ 500024
+