diff --git a/src/common/reservation.ts b/src/common/reservation.ts
index 887e8a8..2dd08c7 100644
--- a/src/common/reservation.ts
+++ b/src/common/reservation.ts
@@ -166,7 +166,7 @@ export class Reservation {
     await run(
       `
       DELETE FROM reservations
-      WHERE id = $
+      WHERE id = ?
     `,
       [res.id]
     )