diff --git a/lib/ChangeLog b/lib/ChangeLog
index a58aa71a1..a545efecc 100644
--- a/lib/ChangeLog
+++ b/lib/ChangeLog
@@ -1,3 +1,10 @@
+2001-03-16  Paul Eggert  <eggert@twinsun.com>
+
+	* tempname.c (uint64_t): Define to uintmax_t if
+	not defined, and if UINT64_MAX is not defined.
+	Required at least for Vax Ultrix4.3, which doesn't define uint64_t.
+	Reported by John David Anglin.
+
 2001-03-10  Bruno Haible  <haible@clisp.cons.org>
 
 	* localcharset.c (locale_charset): Allow wildcard syntax. Also resolve