diff --git a/typescript/types/clock_info.d.ts b/typescript/types/clock_info.d.ts
index 9b664a6dc..06a2d400b 100644
--- a/typescript/types/clock_info.d.ts
+++ b/typescript/types/clock_info.d.ts
@@ -44,6 +44,7 @@ declare module ClockInfo {
     w: number,
     h: number,
     draw(itm: MenuItem, info: Item, options: InteractiveOptions): void,
+    app?: string, // used to remember clock_info locations, per app
   };
 
   type InteractiveOptions =