diff --git a/effects/desktopgrid/desktopgrid_config.cpp b/effects/desktopgrid/desktopgrid_config.cpp
--- a/effects/desktopgrid/desktopgrid_config.cpp
+++ b/effects/desktopgrid/desktopgrid_config.cpp
@@ -87,8 +87,8 @@
     DesktopGridConfig::instance(KWIN_CONFIG);
     addConfig(DesktopGridConfig::self(), m_ui);
     connect(m_ui->kcfg_LayoutMode, qOverload<int>(&KComboBox::currentIndexChanged), this, &DesktopGridEffectConfig::layoutSelectionChanged);
-    connect(m_ui->desktopNameAlignmentCombo, qOverload<int>(&KComboBox::currentIndexChanged), this, qOverload<>(&DesktopGridEffectConfig::changed));
-    connect(m_ui->shortcutEditor, &KShortcutsEditor::keyChange, this, qOverload<>(&DesktopGridEffectConfig::changed));
+    connect(m_ui->desktopNameAlignmentCombo, qOverload<int>(&KComboBox::currentIndexChanged), this, &DesktopGridEffectConfig::markAsChanged);
+    connect(m_ui->shortcutEditor, &KShortcutsEditor::keyChange, this, &DesktopGridEffectConfig::markAsChanged);
 
     load();
     layoutSelectionChanged();
diff --git a/effects/mouseclick/mouseclick_config.cpp b/effects/mouseclick/mouseclick_config.cpp
--- a/effects/mouseclick/mouseclick_config.cpp
+++ b/effects/mouseclick/mouseclick_config.cpp
@@ -54,7 +54,7 @@
     QVBoxLayout* layout = new QVBoxLayout(this);
     layout->addWidget(m_ui);
 
-    connect(m_ui->editor, &KShortcutsEditor::keyChange, this, qOverload<>(&MouseClickEffectConfig::changed));
+    connect(m_ui->editor, &KShortcutsEditor::keyChange, this, &MouseClickEffectConfig::markAsChanged);
 
     // Shortcut config. The shortcut belongs to the component "kwin"!
     m_actionCollection = new KActionCollection(this, QStringLiteral("kwin"));
diff --git a/effects/presentwindows/presentwindows_config.cpp b/effects/presentwindows/presentwindows_config.cpp
--- a/effects/presentwindows/presentwindows_config.cpp
+++ b/effects/presentwindows/presentwindows_config.cpp
@@ -83,7 +83,7 @@
 
     m_ui->shortcutEditor->addCollection(m_actionCollection);
 
-    connect(m_ui->shortcutEditor, &KShortcutsEditor::keyChange, this, qOverload<>(&PresentWindowsEffectConfig::changed));
+    connect(m_ui->shortcutEditor, &KShortcutsEditor::keyChange, this, &PresentWindowsEffectConfig::markAsChanged);
 
     PresentWindowsConfig::instance(KWIN_CONFIG);
     addConfig(PresentWindowsConfig::self(), m_ui);
diff --git a/effects/thumbnailaside/thumbnailaside_config.cpp b/effects/thumbnailaside/thumbnailaside_config.cpp
--- a/effects/thumbnailaside/thumbnailaside_config.cpp
+++ b/effects/thumbnailaside/thumbnailaside_config.cpp
@@ -57,7 +57,7 @@
 
     layout->addWidget(m_ui);
 
-    connect(m_ui->editor, &KShortcutsEditor::keyChange, this, qOverload<>(&ThumbnailAsideEffectConfig::changed));
+    connect(m_ui->editor, &KShortcutsEditor::keyChange, this, &ThumbnailAsideEffectConfig::markAsChanged);
 
     ThumbnailAsideConfig::instance(KWIN_CONFIG);
     addConfig(ThumbnailAsideConfig::self(), this);
diff --git a/effects/zoom/zoom_config.cpp b/effects/zoom/zoom_config.cpp
--- a/effects/zoom/zoom_config.cpp
+++ b/effects/zoom/zoom_config.cpp
@@ -58,7 +58,7 @@
 
     addConfig(ZoomConfig::self(), m_ui);
 
-    connect(m_ui->editor, &KShortcutsEditor::keyChange, this, qOverload<>(&ZoomEffectConfig::changed));
+    connect(m_ui->editor, &KShortcutsEditor::keyChange, this, &ZoomEffectConfig::markAsChanged);
 
     // Shortcut config. The shortcut belongs to the component "kwin"!
     KActionCollection *actionCollection = new KActionCollection(this, QStringLiteral("kwin"));
diff --git a/kcmkwin/kwincompositing/main.cpp b/kcmkwin/kwincompositing/main.cpp
--- a/kcmkwin/kwincompositing/main.cpp
+++ b/kcmkwin/kwincompositing/main.cpp
@@ -76,7 +76,7 @@
     using namespace KWin::Compositing;
     auto currentIndexChangedSignal = static_cast<void(QComboBox::*)(int)>(&QComboBox::currentIndexChanged);
 
-    connect(m_compositing, &Compositing::changed, this, static_cast<void(KCModule::*)()>(&KWinCompositingSettings::changed));
+    connect(m_compositing, &Compositing::changed, this, &KWinCompositingSettings::markAsChanged);
 
     // enabled check box
     m_form.compositingEnabled->setChecked(m_compositing->compositingEnabled());