diff --git a/en_US.ISO8859-1/books/porters-handbook/book.sgml b/en_US.ISO8859-1/books/porters-handbook/book.sgml
index c2076d51ec..7d5419aece 100644
--- a/en_US.ISO8859-1/books/porters-handbook/book.sgml
+++ b/en_US.ISO8859-1/books/porters-handbook/book.sgml
@@ -4579,6 +4579,8 @@ PORTVERSION=   1.0</programlisting>
 	  <literal>GNU_CONFIGURE=yes</literal>.  If you want to give extra
 	  arguments to the <command>configure</command> script (the default
 	  argument is <literal>--prefix=&dollar;{PREFIX}
+	  --infodir=&dollar;{PREFIX}/&dollar;{INFO_PATH}
+	  --mandir=&dollar;{MANPREFIX}/man
 	  &dollar;{CONFIGURE_TARGET}</literal>), set those
 	  extra arguments in <makevar>CONFIGURE_ARGS</makevar>.  Extra
 	  environment variables can be passed using