diff --git a/en_US.ISO8859-1/books/porters-handbook/book.sgml b/en_US.ISO8859-1/books/porters-handbook/book.sgml
index 236a2c8697..8e1b935737 100644
--- a/en_US.ISO8859-1/books/porters-handbook/book.sgml
+++ b/en_US.ISO8859-1/books/porters-handbook/book.sgml
@@ -6587,6 +6587,12 @@ IGNORE=POINTYHAT is not supported
502117
+
+ 5.2-CURRENT after adding support for CLOCK_VIRTUAL
+ and CLOCK_PROF to clock_gettime(2) and clock_getres(2).
+
+ 502118
+