diff --git a/usr.bin/calendar/calendars/calendar.freebsd b/usr.bin/calendar/calendars/calendar.freebsd
index 2fd76e72b9ff..5e005d299909 100644
--- a/usr.bin/calendar/calendars/calendar.freebsd
+++ b/usr.bin/calendar/calendars/calendar.freebsd
@@ -20,7 +20,7 @@
 01/16	Dmitry Sivachenko <demon@FreeBSD.org> born in Moscow, USSR, 1978
 01/16	Vanilla I. Shu <vanilla@FreeBSD.org> born in Taipei, Taiwan, Republic of China, 1978
 01/18	Dejan Lesjak <lesi@FreeBSD.org> born in Ljubljana, Slovenia, Yugoslavia, 1977
-01/19	Marshall Kirk McKusick <mckusick@freebsd.org> born in Wilmington, Delaware, United States, 1954
+01/19	Marshall Kirk McKusick <mckusick@FreeBSD.org> born in Wilmington, Delaware, United States, 1954
 01/19	Ruslan Ermilov <ru@FreeBSD.org> born in Simferopol, USSR, 1974
 01/20	Poul-Henning Kamp <phk@FreeBSD.org> born in Korsoer, Denmark, 1966
 01/22	Johann Visagie <wjv@FreeBSD.org> born in Cape Town, South Africa, 1970