diff --git a/daemon/actions/bundled/wirelesspowersavingconfig.cpp b/daemon/actions/bundled/wirelesspowersavingconfig.cpp
--- a/daemon/actions/bundled/wirelesspowersavingconfig.cpp
+++ b/daemon/actions/bundled/wirelesspowersavingconfig.cpp
@@ -111,14 +111,9 @@
     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;
 }