geneit_app/src/dialogs/accommodations/UpdateReservationDialog.tsx

@@ -101,9 +101,11 @@ export function UpdateReservationDialog(p: {
         <Button
           onClick={submit}
           disabled={
+            !(
               (reservation?.accommodation_id ?? -1) > 0 &&
               (reservation?.start ?? -1) > 0 &&
               (reservation?.end ?? -1) > (reservation?.start ?? 0)
+            )
           }
         >
           {p.create ? "Créer" : "Mettre à jour"}