diff --git a/tests/examples/mxf/mxfdemux-structure.c b/tests/examples/mxf/mxfdemux-structure.c
index 7b5d37b1c9..82a9a24a7d 100644
--- a/tests/examples/mxf/mxfdemux-structure.c
+++ b/tests/examples/mxf/mxfdemux-structure.c
@@ -225,6 +225,7 @@ main (int argc, char **argv)
 
   gtk_container_add (GTK_CONTAINER (scrolled_window), treeview);
   gtk_container_add (GTK_CONTAINER (window), scrolled_window);
+  gtk_widget_show_all (window);
 
   gst_element_set_state (pipeline, GST_STATE_PLAYING);