diff --git a/src/platform/qt/CoreController.cpp b/src/platform/qt/CoreController.cpp
index 37fc1b01f..1447fedba 100644
--- a/src/platform/qt/CoreController.cpp
+++ b/src/platform/qt/CoreController.cpp
@@ -80,7 +80,7 @@ CoreController::CoreController(mCore* core, QObject* parent)
 
 	m_threadContext.resetCallback = [](mCoreThread* context) {
 		CoreController* controller = static_cast<CoreController*>(context->userData);
-		for (auto action : controller->m_resetActions) {
+		for (auto& action : controller->m_resetActions) {
 			action();
 		}
 
diff --git a/src/platform/qt/InputController.cpp b/src/platform/qt/InputController.cpp
index d8b5dd783..3af600a64 100644
--- a/src/platform/qt/InputController.cpp
+++ b/src/platform/qt/InputController.cpp
@@ -151,7 +151,7 @@ bool InputController::loadConfiguration(uint32_t type) {
 	if (!mInputMapLoad(&m_inputMap, type, m_config->input())) {
 		return false;
 	}
-	auto driver = m_inputDrivers.value(type);
+	auto& driver = m_inputDrivers.value(type);
 	if (!driver) {
 		return false;
 	}
@@ -185,7 +185,7 @@ void InputController::saveConfiguration() {
 
 void InputController::saveConfiguration(uint32_t type) {
 	mInputMapSave(&m_inputMap, type, m_config->input());
-	auto driver = m_inputDrivers.value(type);
+	auto& driver = m_inputDrivers.value(type);
 	if (driver) {
 		driver->saveConfiguration(m_config);
 	}
@@ -201,7 +201,7 @@ void InputController::saveProfile(uint32_t type, const QString& profile) {
 }
 
 QString InputController::profileForType(uint32_t type) {
-	auto driver = m_inputDrivers.value(type);
+	auto& driver = m_inputDrivers.value(type);
 	if (!driver) {
 		return {};
 	}
@@ -209,7 +209,7 @@ QString InputController::profileForType(uint32_t type) {
 }
 
 void InputController::setGamepadDriver(uint32_t type) {
-	auto driver = m_inputDrivers.value(type);
+	auto& driver = m_inputDrivers.value(type);
 	if (!driver || !driver->supportsGamepads()) {
 		return;
 	}
@@ -220,13 +220,13 @@ QStringList InputController::connectedGamepads(uint32_t type) const {
 	if (!type) {
 		type = m_gamepadDriver;
 	}
-	auto driver = m_inputDrivers.value(type);
+	auto& driver = m_inputDrivers.value(type);
 	if (!driver) {
 		return {};
 	}
 
 	QStringList pads;
-	for (auto pad : driver->connectedGamepads()) {
+	for (auto& pad : driver->connectedGamepads()) {
 		pads.append(pad->visibleName());
 	}
 	return pads;
@@ -236,7 +236,7 @@ int InputController::gamepadIndex(uint32_t type) const {
 	if (!type) {
 		type = m_gamepadDriver;
 	}
-	auto driver = m_inputDrivers.value(type);
+	auto& driver = m_inputDrivers.value(type);
 	if (!driver) {
 		return -1;
 	}
@@ -247,7 +247,7 @@ void InputController::setGamepad(uint32_t type, int index) {
 	if (!type) {
 		type = m_gamepadDriver;
 	}
-	auto driver = m_inputDrivers.value(type);
+	auto& driver = m_inputDrivers.value(type);
 	if (!driver) {
 		return;
 	}
@@ -265,7 +265,7 @@ void InputController::setPreferredGamepad(uint32_t type, int index) {
 	if (!type) {
 		type = m_gamepadDriver;
 	}
-	auto driver = m_inputDrivers.value(type);
+	auto& driver = m_inputDrivers.value(type);
 	if (!driver) {
 		return;
 	}
@@ -299,7 +299,7 @@ InputMapper InputController::mapper(InputSource* source) {
 }
 
 void InputController::setSensorDriver(uint32_t type) {
-	auto driver = m_inputDrivers.value(type);
+	auto& driver = m_inputDrivers.value(type);
 	if (!driver || !driver->supportsSensors()) {
 		return;
 	}
@@ -308,7 +308,7 @@ void InputController::setSensorDriver(uint32_t type) {
 
 
 mRumble* InputController::rumble() {
-	auto driver = m_inputDrivers.value(m_sensorDriver);
+	auto& driver = m_inputDrivers.value(m_sensorDriver);
 	if (driver) {
 		return driver->rumble();
 	}
@@ -316,7 +316,7 @@ mRumble* InputController::rumble() {
 }
 
 mRotationSource* InputController::rotationSource() {
-	auto driver = m_inputDrivers.value(m_sensorDriver);
+	auto& driver = m_inputDrivers.value(m_sensorDriver);
 	if (driver) {
 		return driver->rotationSource();
 	}
@@ -341,7 +341,7 @@ void InputController::update() {
 
 int InputController::pollEvents() {
 	int activeButtons = 0;
-	for (auto pad : gamepads()) {
+	for (auto& pad : gamepads()) {
 		InputMapper im(mapper(pad));
 		activeButtons |= im.mapKeys(pad->currentButtons());
 		activeButtons |= im.mapAxes(pad->currentAxes());
@@ -356,7 +356,7 @@ int InputController::pollEvents() {
 }
 
 Gamepad* InputController::gamepad(uint32_t type) {
-	auto driver = m_inputDrivers.value(type);
+	auto& driver = m_inputDrivers.value(type);
 	if (!driver) {
 		return nullptr;
 	}
@@ -464,7 +464,7 @@ void InputController::testGamepad(uint32_t type) {
 			}
 		}
 	}
-	for (auto axis : oldAxes) {
+	for (auto& axis : oldAxes) {
 		GamepadAxisEvent* event = new GamepadAxisEvent(axis.first, axis.second, false, type, this);
 		clearPendingEvent(event->platformKey());
 		sendGamepadEvent(event);
diff --git a/src/platform/qt/SettingsView.cpp b/src/platform/qt/SettingsView.cpp
index 4eca3cb46..acf272cf6 100644
--- a/src/platform/qt/SettingsView.cpp
+++ b/src/platform/qt/SettingsView.cpp
@@ -51,7 +51,7 @@ SettingsView::SettingsView(ConfigController* controller, InputController* inputC
 #ifdef M_CORE_GB
 	m_pageIndex[Page::GB] = 9;
 
-	for (auto model : GameBoy::modelList()) {
+	for (auto& model : GameBoy::modelList()) {
 		m_ui.gbModel->addItem(GameBoy::modelName(model), model);
 		m_ui.sgbModel->addItem(GameBoy::modelName(model), model);
 		m_ui.cgbModel->addItem(GameBoy::modelName(model), model);
@@ -350,7 +350,7 @@ SettingsView::SettingsView(ConfigController* controller, InputController* inputC
 	QLocale englishLocale("en");
 	m_ui.languages->addItem(englishLocale.nativeLanguageName(), englishLocale);
 	QDir ts(":/translations/");
-	for (auto name : ts.entryList()) {
+	for (auto& name : ts.entryList()) {
 		if (!name.endsWith(".qm") || !name.startsWith(binaryName)) {
 			continue;
 		}