Add parent

src/rsdialog.cpp

@@ -22,7 +22,7 @@
 RSDialog::RSDialog(QWidget* parent) : QDialog(parent)
 {
     setWindowTitle(i18nc("@title:window", "Risks/Security Phrases"));
-    QDialogButtonBox *buttonBox = new QDialogButtonBox(QDialogButtonBox::Help|QDialogButtonBox::Close);
+    QDialogButtonBox *buttonBox = new QDialogButtonBox(QDialogButtonBox::Help|QDialogButtonBox::Close, this);
     QWidget *mainWidget = new QWidget(this);
     QVBoxLayout *mainLayout = new QVBoxLayout;
     setLayout(mainLayout);