Problem with translate one element

[Hostel]

I made a translate in Qt Linguist but I have a problem with one object. In constructor I have:

WindowA::WindowA(QWidget *parent) :
    QMainWindow(parent),
    ui(new Ui::WindowA)
{
(...)
   acClose = ui->menuBar->addAction( tr( "Close", "menu" ) );
(...)
}

WindowA::WindowA(QWidget *parent) :
    QMainWindow(parent),
    ui(new Ui::WindowA)
{
(...)
   acClose = ui->menuBar->addAction( tr( "Close", "menu" ) );
(...)
}

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acClose is a QAction* which I decleared in WindowA.
WindowA has a QTranslator as member.

In my program I have menu for changing language. When I choose another lang, then application translate all text but not this "Close" label for acClose.

How to resolve this?