diff --git a/crates/sylpheed-viewer/src/iso_loader.rs b/crates/sylpheed-viewer/src/iso_loader.rs
index 0914d1f0..94442e65 100644
--- a/crates/sylpheed-viewer/src/iso_loader.rs
+++ b/crates/sylpheed-viewer/src/iso_loader.rs
@@ -4453,6 +4453,7 @@ fn compose_screen(
             } else {
                 ComposeOptions::default().backdrop
             },
+            at: None,
         },
         Some(&visible),
     );