diff --git a/src/model/ticket.ts b/src/model/ticket.ts
index df54f89..2268f48 100644
--- a/src/model/ticket.ts
+++ b/src/model/ticket.ts
@@ -28,7 +28,7 @@ export interface GetTicketsRequest {
 
 export interface GetTicketsResponse {
     count: number;
-    data: Ticket[];
+    data: Ticket[] | null;
 };
 
 export interface Ticket {