diff --git a/gui/chronosharegui.h b/gui/chronosharegui.h
index fffaca7..c56baa5 100644
--- a/gui/chronosharegui.h
+++ b/gui/chronosharegui.h
@@ -112,9 +112,9 @@
   // capture close event
   void closeEvent(QCloseEvent* event);
 
-  // starts fs watcher and dispatcher
+  // starts/restarts fs watcher and dispatcher
   void
-  startBackend();
+  startBackend(bool restart=false);
 
 private:
   QSystemTrayIcon* m_trayIcon; // tray icon