diff --git a/src/routes/calendar.index.tsx b/src/routes/calendar.index.tsx
index 291bfc8..8c37a17 100644
--- a/src/routes/calendar.index.tsx
+++ b/src/routes/calendar.index.tsx
@@ -242,7 +242,9 @@ function CalendarPage() {
 
   const visibleEvents = useMemo(() => {
     return events.filter((e) => {
-      if (!activeTypes.has(e.event_type)) return false;
+      // Treat unknown event types as "other" so they remain visible
+      const typeKey = EVENT_TYPE_MAP[e.event_type] ? e.event_type : "other";
+      if (!activeTypes.has(typeKey)) return false;
       if (activeStaff.size > 0) {
         if (!e.owner_id || !activeStaff.has(e.owner_id)) return false;
       }