diff --git a/daemon/actions/bundled/wirelesspowersavingconfig.cpp b/daemon/actions/bundled/wirelesspowersavingconfig.cpp
index b8e61edb..42930392 100644
--- a/daemon/actions/bundled/wirelesspowersavingconfig.cpp
+++ b/daemon/actions/bundled/wirelesspowersavingconfig.cpp
@@ -1,129 +1,124 @@
 /***************************************************************************
  *   Copyright (C) 2016 by Jan Grulich <jgrulich@redhat.com>               *
  *                                                                         *
  *   This program is free software; you can redistribute it and/or modify  *
  *   it under the terms of the GNU General Public License as published by  *
  *   the Free Software Foundation; either version 2 of the License, or     *
  *   (at your option) any later version.                                   *
  *                                                                         *
  *   This program is distributed in the hope that it will be useful,       *
  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  *   GNU General Public License for more details.                          *
  *                                                                         *
  *   You should have received a copy of the GNU General Public License     *
  *   along with this program; if not, write to the                         *
  *   Free Software Foundation, Inc.,                                       *
  *   51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA .        *
  ***************************************************************************/
 
 #include "wirelesspowersavingconfig.h"
 #include "wirelesspowersaving.h"
 
 #include <QComboBox>
 #include <QVBoxLayout>
 
 #include <KConfig>
 #include <KPluginFactory>
 #include <KSharedConfig>
 #include <KLocalizedString>
 
 #include <NetworkManagerQt/Manager>
 
 K_PLUGIN_FACTORY(PowerDevilWirelessPowerSavingConfigFactory, registerPlugin<PowerDevil::BundledActions::WirelessPowerSavingConfig>(); )
 
 namespace PowerDevil {
 namespace BundledActions {
 
 WirelessPowerSavingConfig::WirelessPowerSavingConfig(QObject *parent, const QVariantList& )
     : ActionConfig(parent)
     , m_btCombobox(nullptr)
     , m_wifiCombobox(nullptr)
     , m_wwanCombobox(nullptr)
 {
 
 }
 
 WirelessPowerSavingConfig::~WirelessPowerSavingConfig()
 {
 
 }
 
 void WirelessPowerSavingConfig::save()
 {
     configGroup().writeEntry<uint>("wifiOption", m_wifiCombobox->itemData(m_wifiCombobox->currentIndex()).toUInt());
     configGroup().writeEntry<uint>("wwanOption", m_wwanCombobox->itemData(m_wwanCombobox->currentIndex()).toUInt());
     configGroup().writeEntry<uint>("btOption", m_btCombobox->itemData(m_btCombobox->currentIndex()).toUInt());
 }
 
 void WirelessPowerSavingConfig::load()
 {
     configGroup().config()->reparseConfiguration();
 
     const uint wifiOptionType = configGroup().readEntry<uint>("wifiOption", 0);
     const uint wwanOptionType = configGroup().readEntry<uint>("wwanOption", 0);
     const uint btOptionType = configGroup().readEntry<uint>("btOption", 0);
 
     m_wifiCombobox->setCurrentIndex(m_wifiCombobox->findData(wifiOptionType));
     m_wwanCombobox->setCurrentIndex(m_wwanCombobox->findData(wwanOptionType));
     m_btCombobox->setCurrentIndex(m_btCombobox->findData(btOptionType));
 }
 
 QList< QPair< QString, QWidget* > > WirelessPowerSavingConfig::buildUi()
 {
     m_wifiCombobox = new QComboBox();
     m_wifiCombobox->addItem(i18n("Leave unchanged"), (uint)WirelessPowerSaving::NoAction);
     m_wifiCombobox->addItem(i18n("Turn off"), (uint)WirelessPowerSaving::TurnOff);
     m_wifiCombobox->addItem(i18n("Turn on"), (uint)WirelessPowerSaving::TurnOn);
 
     m_wwanCombobox = new QComboBox();
     m_wwanCombobox->addItem(i18n("Leave unchanged"), (uint)WirelessPowerSaving::NoAction);
     m_wwanCombobox->addItem(i18n("Turn off"), (uint)WirelessPowerSaving::TurnOff);
     m_wwanCombobox->addItem(i18n("Turn on"), (uint)WirelessPowerSaving::TurnOn);
 
     m_btCombobox = new QComboBox();
     m_btCombobox->addItem(i18n("Leave unchanged"), (uint)WirelessPowerSaving::NoAction);
     m_btCombobox->addItem(i18n("Turn off"), (uint)WirelessPowerSaving::TurnOff);
     m_btCombobox->addItem(i18n("Turn on"), (uint)WirelessPowerSaving::TurnOn);
 
     // unified width for the comboboxes
     int comboBoxMaxWidth = 300;
     comboBoxMaxWidth = qMax(comboBoxMaxWidth, m_wifiCombobox->sizeHint().width());
     m_wifiCombobox->setMinimumWidth(300);
     m_wifiCombobox->setMaximumWidth(comboBoxMaxWidth);
     m_wwanCombobox->setMinimumWidth(300);
     m_wwanCombobox->setMaximumWidth(comboBoxMaxWidth);
     m_btCombobox->setMinimumWidth(300);
     m_btCombobox->setMaximumWidth(comboBoxMaxWidth);
 
     // Disable comboboxes for actions which are not allowed
     NMStringMap permissions = NetworkManager::permissions();
     for (auto it = permissions.constBegin(); it != permissions.constEnd(); ++it) {
         if (it.key() == QLatin1String("org.freedesktop.NetworkManager.enable-disable-wifi")) {
             m_wifiCombobox->setEnabled(it.value() == QLatin1String("yes"));
         } else if (it.key() == QLatin1String("org.freedesktop.NetworkManager.enable-disable-wwan")) {
             m_wwanCombobox->setEnabled(it.value() == QLatin1String("yes"));
         }
     }
 
     QList< QPair< QString, QWidget* > > retlist;
     retlist.append(qMakePair< QString, QWidget* >(i18n("Wi-Fi"), m_wifiCombobox));
     retlist.append(qMakePair< QString, QWidget* >(i18n("Mobile broadband"), m_wwanCombobox));
     retlist.append(qMakePair< QString, QWidget* >(i18n("Bluetooth"), m_btCombobox));
 
-#if (QT_VERSION >= QT_VERSION_CHECK(5, 15, 0))
-    const auto comboIndexChanged = QOverload<int, const QString&>::of(&QComboBox::currentIndexChanged);
-#else
-    const auto comboIndexChanged = QOverload<int>::of(&QComboBox::currentIndexChanged);
-#endif
-    connect(m_wifiCombobox, comboIndexChanged, this, &WirelessPowerSavingConfig::setChanged);
-    connect(m_wwanCombobox, comboIndexChanged, this, &WirelessPowerSavingConfig::setChanged);
-    connect(m_btCombobox, comboIndexChanged, this, &WirelessPowerSavingConfig::setChanged);
+    connect(m_wifiCombobox, static_cast<void (QComboBox::*)(int)>(&QComboBox::currentIndexChanged), this, &WirelessPowerSavingConfig::setChanged);
+    connect(m_wwanCombobox, static_cast<void (QComboBox::*)(int)>(&QComboBox::currentIndexChanged), this, &WirelessPowerSavingConfig::setChanged);
+    connect(m_btCombobox, static_cast<void (QComboBox::*)(int)>(&QComboBox::currentIndexChanged), this, &WirelessPowerSavingConfig::setChanged);
 
     return retlist;
 }
 
 }
 }
 
 #include "wirelesspowersavingconfig.moc"