1 files changed, 6 insertions, 3 deletions

diff --git a/doc/emacs/mule.texi b/doc/emacs/mule.texi
index 5a166d13124..909c866a1c2 100644
--- a/doc/emacs/mule.texi
+++ b/doc/emacs/mule.texi
@@ -1733,9 +1733,12 @@ internal representation within Emacs.
 @findex list-character-sets
   @kbd{M-x list-character-sets} displays a list of all supported
 charsets.  The list gives the names of charsets and additional
-information to identity each charset; see the
-@url{http://www.itscj.ipsj.or.jp/ISO-IR/, International Register of
-Coded Character Sets} for more details.  In this list,
+information to identity each charset; for more details, see the
+@url{https://www.itscj.ipsj.or.jp/itscj_english/iso-ir/ISO-IR.pdf,
+International Register of Coded Character Sets} maintained by
+the @url{https://www.itscj.ipsj.or.jp/itscj_english/,
+Information Processing Society of Japan/Information Technology
+Standards Commission of Japan (IPSJ/ITSCJ)}.  In this list,
 charsets are divided into two categories: @dfn{normal charsets} are
 listed first, followed by @dfn{supplementary charsets}.  A
 supplementary charset is one that is used to define another charset