diff --git a/usr.bin/calendar/calendars/calendar.birthday b/usr.bin/calendar/calendars/calendar.birthday
index 912dbc5a1131..fdfe89959f0f 100644
--- a/usr.bin/calendar/calendars/calendar.birthday
+++ b/usr.bin/calendar/calendars/calendar.birthday
@@ -138,7 +138,7 @@
 05/10	William Robert "Bert" Sutherland was born in Hastings, Nebraska, 1936
 05/11	Douglas Adams died, 2001
 05/11	Johnny Appleseed born, 1768
-05/11	Richard Philips Feynman was born is Queens, New York, 1918
+05/11	Richard Philips Feynman was born in Queens, New York, 1918
 05/12	Florence Nightingale born in Florence, Italy, 1820
 05/13	Arthur S. Sullivan born, 1842
 05/15	Mike Oldfield born in Essex, England, 1953