--- a/src/kcm_grub2.cpp
+++ b/src/kcm_grub2.cpp
@@ -515,7 +515,6 @@ void KCMGRUB2::save()
         detailsButton->setIcon(QIcon::fromTheme(QStringLiteral("help-about")));
 
         QDialogButtonBox *buttonBox = new QDialogButtonBox(dialog);
-        buttonBox->addButton(detailsButton, QDialogButtonBox::HelpRole);
         buttonBox->addButton(QDialogButtonBox::Ok);
         buttonBox->button(QDialogButtonBox::Ok)->setFocus();
 
--- a/src/installDlg.cpp
+++ b/src/installDlg.cpp
@@ -142,7 +142,6 @@ void InstallDialog::slotAccepted()
         detailsButton->setIcon(QIcon::fromTheme(QStringLiteral("help-about")));
 
         QDialogButtonBox *buttonBox = new QDialogButtonBox(dialog);
-        buttonBox->addButton(detailsButton, QDialogButtonBox::HelpRole);
         buttonBox->addButton(QDialogButtonBox::Ok);
         buttonBox->button(QDialogButtonBox::Ok)->setFocus();