diff --git a/crates/notedeck/src/app.rs b/crates/notedeck/src/app.rs
index 1e3f470d..21f5c5a5 100644
--- a/crates/notedeck/src/app.rs
+++ b/crates/notedeck/src/app.rs
@@ -208,7 +208,6 @@ impl Notedeck {
 
         let img_cache = Images::new(img_cache_dir);
         let note_cache = NoteCache::default();
-        let unknown_ids = UnknownIds::default();
         let zoom = ZoomHandler::new(&path);
         let app_size = AppSizeHandler::new(&path);