diff --git a/CMakeLists.txt b/CMakeLists.txt
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -548,6 +548,7 @@
     KF5::Package
     KF5::Plasma
     KF5::WindowSystem
+    KF5::QuickAddons
     KDecoration2::KDecoration
     KDecoration2::KDecoration2Private
     PW::KScreenLocker
diff --git a/main_wayland.cpp b/main_wayland.cpp
--- a/main_wayland.cpp
+++ b/main_wayland.cpp
@@ -35,6 +35,8 @@
 #include <KLocalizedString>
 #include <KPluginLoader>
 #include <KPluginMetaData>
+#include <KQuickAddons/QtQuickSettings>
+
 // Qt
 #include <qplatformdefs.h>
 #include <QAbstractEventDispatcher>
@@ -477,6 +479,7 @@
     setenv("QT_QPA_PLATFORM", "wayland", true);
 
     KWin::Application::createAboutData();
+    KQuickAddons::QtQuickSettings::init();
 
     const auto availablePlugins = KPluginLoader::findPlugins(QStringLiteral("org.kde.kwin.waylandbackends"));
     auto hasPlugin = [&availablePlugins] (const QString &name) {
diff --git a/main_x11.cpp b/main_x11.cpp
--- a/main_x11.cpp
+++ b/main_x11.cpp
@@ -33,6 +33,7 @@
 #include <KLocalizedString>
 #include <KPluginLoader>
 #include <KPluginMetaData>
+#include <KQuickAddons/QtQuickSettings>
 // Qt
 #include <qplatformdefs.h>
 #include <QComboBox>
@@ -412,6 +413,7 @@
     a.setupTranslator();
 
     KWin::Application::createAboutData();
+    KQuickAddons::QtQuickSettings::init();
 
     QCommandLineOption replaceOption(QStringLiteral("replace"), i18n("Replace already-running ICCCM2.0-compliant window manager"));