diff --git a/kcm/src/declarative/qmlscreen.h b/kcm/src/declarative/qmlscreen.h
--- a/kcm/src/declarative/qmlscreen.h
+++ b/kcm/src/declarative/qmlscreen.h
@@ -52,9 +52,6 @@
                READ outputScale
                NOTIFY outputScaleChanged)
 
-    Q_PROPERTY(QQmlEngine* engine
-               MEMBER m_engine)
-
   public:
     explicit QMLScreen(QQuickItem *parent = nullptr);
     ~QMLScreen() override;
@@ -73,7 +70,6 @@
     void setConfig(const KScreen::ConfigPtr &config);
 
     void updateOutputsPlacement();
-    void setEngine(QQmlEngine* engine);
 
     void setActiveOutput(QMLOutput *output);
 
@@ -110,7 +106,6 @@
     int m_connectedOutputsCount = 0;
     int m_enabledOutputsCount = 0;
 
-    QQmlEngine* m_engine = nullptr;
     QMLOutput *m_leftmost = nullptr;
     QMLOutput *m_topmost = nullptr;
     QMLOutput *m_rightmost = nullptr;
diff --git a/kcm/src/declarative/qmlscreen.cpp b/kcm/src/declarative/qmlscreen.cpp
--- a/kcm/src/declarative/qmlscreen.cpp
+++ b/kcm/src/declarative/qmlscreen.cpp
@@ -82,9 +82,7 @@
 
 void QMLScreen::addOutput(const KScreen::OutputPtr &output)
 {
-    //QQuickItem *container = findChild<QQuickItem*>(QLatin1String("outputContainer"));
-
-    QMLOutputComponent comp(m_engine, this);
+    QMLOutputComponent comp(qmlEngine(this), this);
     QMLOutput *qmloutput = comp.createForOutput(output);
     if (!qmloutput) {
         qWarning() << "Failed to create QMLOutput";
@@ -350,8 +348,3 @@
         qmlOutput->blockSignals(false);
     }
 }
-
-void QMLScreen::setEngine(QQmlEngine* engine)
-{
-    m_engine = engine;
-}
diff --git a/kcm/src/widget.cpp b/kcm/src/widget.cpp
--- a/kcm/src/widget.cpp
+++ b/kcm/src/widget.cpp
@@ -188,8 +188,6 @@
     if (!mScreen) {
         return;
     }
-    mScreen->setEngine(ui->quickWidget->engine());
-
     connect(mScreen, &QMLScreen::focusedOutputChanged,
             this, &Widget::slotFocusedOutputChanged);
     connect(rootObject->findChild<QObject*>(QStringLiteral("identifyButton")), SIGNAL(clicked()),