diff --git a/packages/frontend/src/ui/visitor/b.vue b/packages/frontend/src/ui/visitor/b.vue
index 058a9482f..42283fe95 100644
--- a/packages/frontend/src/ui/visitor/b.vue
+++ b/packages/frontend/src/ui/visitor/b.vue
@@ -83,7 +83,7 @@ const announcements = {
 	limit: 10,
 };
 
-const isTimelineAvailable = instance.policies.ltlAvailable || instance.policies.gtlAvailable;
+const isTimelineAvailable = $ref(instance.policies?.ltlAvailable || instance.policies?.gtlAvailable);
 
 let showMenu = $ref(false);
 let isDesktop = $ref(window.innerWidth >= DESKTOP_THRESHOLD);