diff --git a/components/admin/AdminPanel.tsx b/components/admin/AdminPanel.tsx
index 21a45e5..72e597c 100644
--- a/components/admin/AdminPanel.tsx
+++ b/components/admin/AdminPanel.tsx
@@ -13,6 +13,7 @@ interface SitePreferences {
   homeBackground: string | null;
   eventsBackground: string | null;
   leaderboardBackground: string | null;
+  challengesBackground: string | null;
 }
 
 interface AdminPanelProps {