diff --git a/usr.bin/calendar/calendars/calendar.freebsd b/usr.bin/calendar/calendars/calendar.freebsd
index cc209c92d31a..22732251e6c9 100644
--- a/usr.bin/calendar/calendars/calendar.freebsd
+++ b/usr.bin/calendar/calendars/calendar.freebsd
@@ -112,6 +112,7 @@
 07/19	Masafumi NAKANE <max@FreeBSD.org> born in Okazaki, Aichi, Japan, 1972
 07/22	James Housley <jeh@FreeBSD.org> born in Chicago, Illinois, United States, 1965
 07/22	Jens Schweikhardt <schweikh@FreeBSD.org> born in Waiblingen, Baden-Wuerttemberg, Germany, 1967
+07/23	Sergey A. Osokin <osa@FreeBSD.org> born in Krasnogorsky, Stepnogorsk, Akmolinskaya region, Kazakhstan, 1972
 07/28	Jim Mock <jim@FreeBSD.org> born in Bethlehem, Pennsylvania, United States, 1974
 07/28	Tom Hukins <tom@FreeBSD.org> born in Manchester, United Kingdom, 1976
 07/29	Dirk Meyer <dinoex@FreeBSD.org> born in Kassel, Hessen, Germany, 1965