diff --git a/src/Gui/ExportMenu.cpp b/src/Gui/ExportMenu.cpp
--- a/src/Gui/ExportMenu.cpp
+++ b/src/Gui/ExportMenu.cpp
@@ -84,7 +84,7 @@
         QString name = service->name().replace(QLatin1Char('&'), QLatin1String("&&"));
         QAction *action = new QAction(QIcon::fromTheme(service->icon()), name, this);
 
-        connect(action, &QAction::triggered, [=]() {
+        connect(action, &QAction::triggered, this, [=]() {
             const QUrl filename = mExportManager->getAutosaveFilename();
             mExportManager->doSave(filename);
             QList<QUrl> whereIs({ filename });
@@ -102,7 +102,7 @@
     openWith->setText(i18n("Other Application..."));
     openWith->setShortcuts(KStandardShortcut::open());
 
-    connect(openWith, &QAction::triggered, [=]() {
+    connect(openWith, &QAction::triggered, this, [=]() {
         const QUrl filename = mExportManager->getAutosaveFilename();
         mExportManager->doSave(filename);
         QList<QUrl> whereIs({ filename });
diff --git a/src/Gui/KSMainWindow.cpp b/src/Gui/KSMainWindow.cpp
--- a/src/Gui/KSMainWindow.cpp
+++ b/src/Gui/KSMainWindow.cpp
@@ -174,7 +174,7 @@
     mToolsMenu->addAction(KStandardAction::print(this, &KSMainWindow::showPrintDialog, this));
     mScreenRecorderToolsMenu = mToolsMenu->addMenu(i18n("Record Screen"));
     mScreenRecorderToolsMenu->setIcon(QIcon::fromTheme(QStringLiteral("media-record")));
-    connect(mScreenRecorderToolsMenu, &QMenu::aboutToShow, [this]()
+    connect(mScreenRecorderToolsMenu, &QMenu::aboutToShow, this, [this]()
     {
         KMoreToolsMenuFactory *moreToolsMenuFactory = new KMoreToolsMenuFactory(QStringLiteral("spectacle/screenrecorder-tools"));
         moreToolsMenuFactory->setParentWidget(this);
diff --git a/src/Gui/KSWidget.cpp b/src/Gui/KSWidget.cpp
--- a/src/Gui/KSWidget.cpp
+++ b/src/Gui/KSWidget.cpp
@@ -130,7 +130,7 @@
     connect(mTakeScreenshotButton, &QPushButton::clicked, this, &KSWidget::newScreenshotClicked);
 
     QShortcut *takeScreenshotShortcut = new QShortcut(QKeySequence(QKeySequence::New), mTakeScreenshotButton);
-    connect(takeScreenshotShortcut, &QShortcut::activated, [this]() {
+    connect(takeScreenshotShortcut, &QShortcut::activated, this, [this]() {
         mTakeScreenshotButton->animateClick(100);
     });
 
diff --git a/src/Gui/SettingsDialog/SaveOptionsPage.cpp b/src/Gui/SettingsDialog/SaveOptionsPage.cpp
--- a/src/Gui/SettingsDialog/SaveOptionsPage.cpp
+++ b/src/Gui/SettingsDialog/SaveOptionsPage.cpp
@@ -71,7 +71,7 @@
     mQualitySlider->setSliderPosition(SpectacleConfig::instance()->compressionQuality());
     mQualitySlider->setTickPosition(QSlider::TicksBelow);
     mQualitySlider->setTracking(true);
-    connect(mQualitySlider, &QSlider::valueChanged, [=](int value) {
+    connect(mQualitySlider, &QSlider::valueChanged, this, [=](int value) {
         qualityValue->setNum(value);
         markDirty();
     });
@@ -94,7 +94,7 @@
     QHBoxLayout *saveFieldLayout = new QHBoxLayout;
     mSaveNameFormat = new QLineEdit;
     connect(mSaveNameFormat, &QLineEdit::textEdited, this, &SaveOptionsPage::markDirty);
-    connect(mSaveNameFormat, &QLineEdit::textEdited, [&](const QString &newText) {
+    connect(mSaveNameFormat, &QLineEdit::textEdited, this, [&](const QString &newText) {
         QString fmt;
         Q_FOREACH(auto item, QImageWriter::supportedImageFormats()) {
             fmt = QString::fromLocal8Bit(item);
@@ -141,7 +141,7 @@
     fmtHelpText->setWordWrap(true);
     fmtHelpText->setTextFormat(Qt::RichText);
     fmtHelpText->setSizePolicy(QSizePolicy::Preferred, QSizePolicy::MinimumExpanding);
-    connect(fmtHelpText, &QLabel::linkActivated, [this](const QString& placeholder) {
+    connect(fmtHelpText, &QLabel::linkActivated, this, [this](const QString& placeholder) {
         mSaveNameFormat->insert(placeholder);
     });
     mainLayout->addWidget(fmtHelpText);
diff --git a/src/Main.cpp b/src/Main.cpp
--- a/src/Main.cpp
+++ b/src/Main.cpp
@@ -151,7 +151,7 @@
     new KDBusService(KDBusService::Multiple, &lCore);
     SpectacleDBusAdapter *lDBusAdapter = new SpectacleDBusAdapter(&lCore);
     QObject::connect(&lCore, &SpectacleCore::grabFailed, lDBusAdapter, &SpectacleDBusAdapter::ScreenshotFailed);
-    QObject::connect(ExportManager::instance(), &ExportManager::imageSaved, [&](const QUrl &savedAt) {
+    QObject::connect(ExportManager::instance(), &ExportManager::imageSaved, lCore, [&](const QUrl &savedAt) {
         emit lDBusAdapter->ScreenshotTaken(savedAt.toLocalFile());
     });
     QDBusConnection::sessionBus().registerObject(QStringLiteral("/"), &lCore);
diff --git a/src/SpectacleCore.cpp b/src/SpectacleCore.cpp
--- a/src/SpectacleCore.cpp
+++ b/src/SpectacleCore.cpp
@@ -98,7 +98,7 @@
             auto lIncludePointer = lGuiConfig.readEntry("includePointer", true);
             auto lIncludeDecorations = lGuiConfig.readEntry("includeDecorations", true);
             const Platform::GrabMode lCaptureMode = toPlatformGrabMode(theCaptureMode);
-            QTimer::singleShot(lMsec, [ this, lCaptureMode, lShutterMode, lIncludePointer, lIncludeDecorations ]() {
+            QTimer::singleShot(lMsec, this, [ this, lCaptureMode, lShutterMode, lIncludePointer, lIncludeDecorations ]() {
                 mPlatform->doGrab(lShutterMode, lCaptureMode, lIncludePointer, lIncludeDecorations);
             });
         }
@@ -161,7 +161,7 @@
             case Actions::TakeNewScreenshot: {
                 auto lShutterMode = mPlatform->supportedShutterModes().testFlag(Platform::ShutterMode::Immediate) ? Platform::ShutterMode::Immediate : Platform::ShutterMode::OnClick;
                 auto lGrabMode = toPlatformGrabMode(ExportManager::instance()->captureMode());
-                QTimer::singleShot(KWindowSystem::compositingActive() ? 200 : 50, [this, lShutterMode, lGrabMode, lIncludePointer, lIncludeDecorations]() {
+                QTimer::singleShot(KWindowSystem::compositingActive() ? 200 : 50, this, [this, lShutterMode, lGrabMode, lIncludePointer, lIncludeDecorations]() {
                     mPlatform->doGrab(lShutterMode, lGrabMode, lIncludePointer, lIncludeDecorations);
                 });
                 break;
@@ -201,7 +201,7 @@
     // milliseconds is a good amount of wait time.
 
     auto lMsec = KWindowSystem::compositingActive() ? 200 : 50;
-    QTimer::singleShot(theTimeout + lMsec, [this, lGrabMode, theIncludePointer, theIncludeDecorations]() {
+    QTimer::singleShot(theTimeout + lMsec, this, [this, lGrabMode, theIncludePointer, theIncludeDecorations]() {
         mPlatform->doGrab(Platform::ShutterMode::Immediate, lGrabMode, theIncludePointer, theIncludeDecorations);
     });
 }
@@ -398,7 +398,7 @@
         auto lShutterMode = mPlatform->supportedShutterModes().testFlag(Platform::ShutterMode::Immediate) ? Platform::ShutterMode::Immediate : Platform::ShutterMode::OnClick;
         auto lGrabMode = toPlatformGrabMode(ExportManager::instance()->captureMode());
 
-        QTimer::singleShot(0, [this, lShutterMode, lGrabMode, theIncludePointer, theIncludeDecorations]() {
+        QTimer::singleShot(0, this, [this, lShutterMode, lGrabMode, theIncludePointer, theIncludeDecorations]() {
             mPlatform->doGrab(lShutterMode, lGrabMode, theIncludePointer, theIncludeDecorations);
         });
     }