diff --git a/locale/en/translations.suml b/locale/en/translations.suml
index 14c627409..41908063b 100644
--- a/locale/en/translations.suml
+++ b/locale/en/translations.suml
@@ -738,6 +738,7 @@ calendar:
         lesbian_visibility_week: 'Lesbian Visibility Week'
         demigender_day: 'Demigender Awareness Day'
         pan_pride_day: 'Pansexual Pride Day'
+        transmasculine_day: 'Transmasculine People's Day'
 
     banner: 'We''re celebrating'
     image: