diff --git a/qt/mainwindow.cpp b/qt/mainwindow.cpp
index 6b7123217b..faf29b65f5 100644
--- a/qt/mainwindow.cpp
+++ b/qt/mainwindow.cpp
@@ -302,7 +302,7 @@ void MainWindow::CreateNavigationBar()
 
     pToolBar->addSeparator();
 
-    pToolBar->addAction(QIcon(":/navig64/bookmark.png"), tr("Show bookmarks and tracks"),
+    pToolBar->addAction(QIcon(":/navig64/bookmark.png"), tr("Show bookmarks and tracks; use ALT + RMB to add a bookmark"),
                         this, SLOT(OnBookmarksAction()));
     pToolBar->addSeparator();