diff --git a/gtk2_ardour/ardour_ui_ed.cc b/gtk2_ardour/ardour_ui_ed.cc
index ae6008a3df..0a652b722d 100644
--- a/gtk2_ardour/ardour_ui_ed.cc
+++ b/gtk2_ardour/ardour_ui_ed.cc
@@ -1004,7 +1004,7 @@ ARDOUR_UI::save_ardour_state ()
 		cnode->add_child_nocopy (*child);
 	}
 
-	Config->add_extra_xml(*window_node);
+	Config->add_extra_xml (*window_node);
 	Config->add_extra_xml (audio_midi_setup->get_state());
 
 	Config->save_state();