diff --git a/gtk2_ardour/ardour_dialog.h b/gtk2_ardour/ardour_dialog.h
index c65eaa5a09..990d86024f 100644
--- a/gtk2_ardour/ardour_dialog.h
+++ b/gtk2_ardour/ardour_dialog.h
@@ -47,7 +47,7 @@ public:
 	bool on_delete_event (GdkEventAny*);
 	void on_unmap ();
 	void on_show ();
-	void on_response (int);
+	virtual void on_response (int);
 
 private:
 	WM::ProxyTemporary* proxy;
diff --git a/gtk2_ardour/rhythm_ferret.cc b/gtk2_ardour/rhythm_ferret.cc
index 2106f487d2..aa4a8c908a 100644
--- a/gtk2_ardour/rhythm_ferret.cc
+++ b/gtk2_ardour/rhythm_ferret.cc
@@ -172,6 +172,12 @@ RhythmFerret::RhythmFerret (Editor& e)
 	analysis_mode_changed ();
 }
 
+void
+RhythmFerret::on_response (int response_id)
+{
+	Gtk::Dialog::on_response (response_id);
+}
+
 void
 RhythmFerret::analysis_mode_changed ()
 {
diff --git a/gtk2_ardour/rhythm_ferret.h b/gtk2_ardour/rhythm_ferret.h
index f091916882..d302226dd9 100644
--- a/gtk2_ardour/rhythm_ferret.h
+++ b/gtk2_ardour/rhythm_ferret.h
@@ -59,6 +59,7 @@ class RhythmFerret : public ArdourDialog {
 	RhythmFerret (Editor&);
 
 	void set_session (ARDOUR::Session*);
+	void on_response (int);
 
   protected:
 	void on_hide ();