diff --git a/src/main.rs b/src/main.rs
index 6f6b1d3..a8f1b1c 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -31,6 +31,7 @@ impl SimpleComponent for AppModel {
             set_default_width: 300,
             set_default_height: 300,
             set_title: Some("Play music!!!"),
+            set_maximized: true,
             gtk::Box {
                 set_orientation: gtk::Orientation::Horizontal,
                 gtk::Box {