diff --git a/extra/calendar/holidays/us/us.factor b/extra/calendar/holidays/us/us.factor
index 87c367f941..575c97ec7a 100644
--- a/extra/calendar/holidays/us/us.factor
+++ b/extra/calendar/holidays/us/us.factor
@@ -90,6 +90,8 @@ HOLIDAY: mothers-day may 2 sunday-of-month ;
 
 HOLIDAY: armed-forces-day may 3 saturday-of-month ;
 
+HOLIDAY: national-donut-day 1 friday-of-month ;
+
 HOLIDAY: flag-day june 14 >>day ;
 
 HOLIDAY: parents-day july 4 sunday-of-month ;