diff --git a/src/pages/TicketDetail/TicketDetail.tsx b/src/pages/TicketDetail/TicketDetail.tsx
index b91e9e7..82e1860 100644
--- a/src/pages/TicketDetail/TicketDetail.tsx
+++ b/src/pages/TicketDetail/TicketDetail.tsx
@@ -118,7 +118,7 @@ export default class TicketDetail extends Component<{}, TicketDetailState> {
 
   componentDidMount(): void {
     const { router } = getCurrentInstance();
-    const id = router?.params.id as number;
+    const id = Number(router?.params.id);
     this.setState({
       id: id,
       isMember: wechatUser.getAccess(),