diff --git a/musicus/src/navigator/window.rs b/musicus/src/navigator/window.rs
index 8b4db50..2022847 100644
--- a/musicus/src/navigator/window.rs
+++ b/musicus/src/navigator/window.rs
@@ -17,7 +17,7 @@ impl NavigatorWindow {
         window.set_default_size(600, 424);
         let placeholder = gtk::Label::new(None);
         let navigator = Navigator::new(backend, &window, &placeholder);
-        window.set_child(Some(&navigator.widget));
+        adw::prelude::WindowExt::set_child(&window, Some(&navigator.widget));
 
         let this = Rc::new(Self { navigator, window });
 
diff --git a/musicus/src/window.rs b/musicus/src/window.rs
index ce7fbf3..0afe258 100644
--- a/musicus/src/window.rs
+++ b/musicus/src/window.rs
@@ -42,7 +42,7 @@ impl Window {
         loading_screen.append(&spinner);
 
         let navigator = Navigator::new(Rc::clone(&backend), &window, &loading_screen);
-        window.set_child(Some(&navigator.widget));
+        adw::prelude::ApplicationWindowExt::set_child(&window, Some(&navigator.widget));
 
         let this = Rc::new(Self {
             backend,