diff --git a/app/historique/page.tsx b/app/historique/page.tsx
index 5216e01..feb59e7 100644
--- a/app/historique/page.tsx
+++ b/app/historique/page.tsx
@@ -259,7 +259,7 @@ export default function HistoriquePage() {
                 <tbody className="bg-white divide-y divide-gray-200">
                   {filteredTickets.map((ticket) => {
                     const prizeConfig = ticket.prize
-                      ? PRIZE_CONFIG[ticket.prize.type]
+                      ? PRIZE_CONFIG[ticket.prize.type as keyof typeof PRIZE_CONFIG]
                       : null;
 
                     return (