#ifndef FILE_DIALOG_PRIVATE_H
#define FILE_DIALOG_PRIVATE_H
-#include <gtkmm.h>
#include "frontends/FileDialog.h"
-class FileDialog::Private : public SigC::Object {
+#include <gtkmm.h>
+
+class FileDialog::Private : public sigc::trackable {
public:
Private(std::string const & title,
kb_action action,