diff --git a/_events/framac-23.1.md b/_events/framac-23.1.md
index 96c7efcb08f330260a673dedf0879c69d0ea61db..b397e3baf653649d709a56dbfb946958f7797f77 100644
--- a/_events/framac-23.1.md
+++ b/_events/framac-23.1.md
@@ -1,7 +1,7 @@
 ---
 layout: default
 date: "21-07-2021"
-event: Frama-C 23.1 (Vanadium)
+short_title: Frama-C 23.1 (Vanadium)
 title: Release of Frama-C 23.1 (Vanadium)
 link: /fc-versions/vanadium.html
 ---