diff --git a/gtk2_ardour/option_editor.cc b/gtk2_ardour/option_editor.cc
index ce4577c2c7..6738848a2d 100644
--- a/gtk2_ardour/option_editor.cc
+++ b/gtk2_ardour/option_editor.cc
@@ -942,7 +942,7 @@ DirectoryOption::selection_changed ()
 
 /*--------------------------*/
 
-OptionEditorContainer::OptionEditorContainer (PBD::Configuration* c, string const& str)
+OptionEditorContainer::OptionEditorContainer (PBD::Configuration* c)
 	: OptionEditor (c)
 {
 	set_border_width (4);
diff --git a/gtk2_ardour/option_editor.h b/gtk2_ardour/option_editor.h
index d1e5cc502f..85c16243ae 100644
--- a/gtk2_ardour/option_editor.h
+++ b/gtk2_ardour/option_editor.h
@@ -742,7 +742,7 @@ private:
 class OptionEditorContainer : public OptionEditor, public Gtk::VBox
 {
 public:
-	OptionEditorContainer (PBD::Configuration *, std::string const &);
+	OptionEditorContainer (PBD::Configuration *);
 	~OptionEditorContainer() {}
 private:
 	Gtk::HBox hpacker;