diff --git a/main.go b/main.go
index bcb4889e..01afaa98 100644
--- a/main.go
+++ b/main.go
@@ -8,6 +8,7 @@ import (
 func main() {
 
 	app := NewQApplication(os.Args)
+	_ = app
 
 	/*
 		btn := NewQPushButton("Hello world!", QWidget{})
@@ -18,6 +19,10 @@ func main() {
 
 	wid := NewQWidget()
 	_ = wid
+
+	btn := NewQPushButton("Hello world!", wid)
+	_ = btn
+
 	wid.Show()
 
 	app.Exec()