diff --git a/video/gtk4/src/sink/render_widget/mod.rs b/video/gtk4/src/sink/render_widget/mod.rs
index d2208ad6..0a1f224a 100644
--- a/video/gtk4/src/sink/render_widget/mod.rs
+++ b/video/gtk4/src/sink/render_widget/mod.rs
@@ -13,7 +13,7 @@ mod imp;
 
 /// Use a simple container widget to automatically pass the window size to gtk4paintablesink.
 glib::wrapper! {
-    pub struct RenderWidget(ObjectSubclass<imp::RenderWidget>) @extends gtk::Widget;
+    pub struct RenderWidget(ObjectSubclass<imp::RenderWidget>) @extends gtk::Widget, @implements gtk::Accessible, gtk::Buildable, gtk::ConstraintTarget;
 }
 
 impl RenderWidget {