diff --git a/src/api/site.ts b/src/api/site.ts
index 829f51d..cc05753 100755
--- a/src/api/site.ts
+++ b/src/api/site.ts
@@ -1,6 +1,19 @@
 import { CustomProps, ViewerGroup } from "./explorer.ts";
 import { User } from "./user.ts";
 
+export interface CustomNavItem {
+  title: string;
+  icon?: string;
+  url: string;
+  target?: string;
+}
+
+export interface CustomHTML {
+  headlessFooter?: string;
+  headlessBottom?: string;
+  sidebarBottom?: string;
+}
+
 export enum CaptchaType {
   NORMAL = "normal",
   RECAPTCHA = "recaptcha",
@@ -46,21 +59,11 @@ export interface SiteConfig {
   custom_nav_items?: CustomNavItem[];
   custom_html?: CustomHTML;
   thumb_exts?: string[];
+  announcement?: string;
+  announcement_enabled?: boolean;
 }
 
 export interface CaptchaResponse {
   ticket: string;
   image: string;
 }
-
-export interface CustomNavItem {
-  name: string;
-  url: string;
-  icon: string;
-}
-
-export interface CustomHTML {
-  headless_footer?: string;
-  headless_bottom?: string;
-  sidebar_bottom?: string;
-}