diff --git a/examples/book/actionbar/examplewindow.cc b/examples/book/actionbar/examplewindow.cc
index 1206edb..4f3ae40 100644
--- a/examples/book/actionbar/examplewindow.cc
+++ b/examples/book/actionbar/examplewindow.cc
@@ -54,6 +54,7 @@ ExampleWindow::ExampleWindow()
   m_box.pack_start(m_face_image, Gtk::PACK_EXPAND_WIDGET);
   m_box.pack_end(m_action_bar, Gtk::PACK_SHRINK);
   add(m_box);
+  show_all_children();
 }
 
 ExampleWindow::~ExampleWindow()