diff --git a/shell/panelview.h b/shell/panelview.h
--- a/shell/panelview.h
+++ b/shell/panelview.h
@@ -167,7 +167,6 @@
     void showEvent(QShowEvent *event) override;
     void moveEvent(QMoveEvent *ev) override;
     bool event(QEvent *e) override;
-    void updateMask();
 
 Q_SIGNALS:
     void alignmentChanged();
@@ -202,6 +201,8 @@
     void restoreAutoHide();
     void screenDestroyed(QObject* screen);
     void adaptToScreen();
+    void handleQmlStatusChange(QQmlComponent::Status status);
+    void updateMask();
 
 private:
     void resizePanel();
diff --git a/shell/panelview.cpp b/shell/panelview.cpp
--- a/shell/panelview.cpp
+++ b/shell/panelview.cpp
@@ -37,6 +37,7 @@
 #include <kwindowsystem.h>
 #include <kwindoweffects.h>
 
+#include <plasma_version.h>
 #include <Plasma/Containment>
 #include <Plasma/Package>
 
@@ -78,6 +79,10 @@
 
     connect(&m_theme, &Plasma::Theme::themeChanged, this, &PanelView::themeChanged);
     connect(this, SIGNAL(backgroundHintsChanged()), this, SLOT(themeChanged()));
+    // TODO: add finished/componentComplete signal to QuickViewSharedEngine,
+    // so we exactly know when rootobject is available
+    connect(this, &QuickViewSharedEngine::statusChanged,
+            this, &PanelView::handleQmlStatusChange);
 
     m_positionPaneltimer.setSingleShot(true);
     m_positionPaneltimer.setInterval(150);
@@ -723,15 +728,19 @@
 
     PlasmaQuick::ContainmentView::resizeEvent(ev);
 
+#if PLASMA_VERSION < QT_VERSION_CHECK(5,59,0)
     updateMask();
+#endif
 }
 
 void PanelView::moveEvent(QMoveEvent *ev)
 {
     updateEnabledBorders();
     m_strutsTimer.start(STRUTSTIMERDELAY);
     PlasmaQuick::ContainmentView::moveEvent(ev);
+#if PLASMA_VERSION < QT_VERSION_CHECK(5,59,0)
     updateMask();
+#endif
 }
 
 void PanelView::integrateScreen()
@@ -1116,7 +1125,9 @@
                                                         m_theme.backgroundSaturation());        
     }
 
+#if PLASMA_VERSION < QT_VERSION_CHECK(5,59,0)
     updateMask();
+#endif
 }
 
 void PanelView::containmentChanged()
@@ -1148,6 +1159,26 @@
     });
 }
 
+void PanelView::handleQmlStatusChange(QQmlComponent::Status status)
+{
+    if (status != QQmlComponent::Ready) {
+        return;
+    }
+
+    QQuickItem *rootObject = this->rootObject();
+    if (rootObject) {
+        disconnect(this, &QuickViewSharedEngine::statusChanged,
+                   this, &PanelView::handleQmlStatusChange);
+
+        const QVariant maskProperty = rootObject->property("panelMask");
+        if (static_cast<QMetaType::Type>(maskProperty.type()) == QMetaType::QRegion) {
+            connect(rootObject, SIGNAL(panelMaskChanged()),
+                    this, SLOT(updateMask()));
+            updateMask();
+        }
+    }
+}
+
 void PanelView::statusChanged(Plasma::Types::ItemStatus status)
 {
     if (status == Plasma::Types::NeedsAttentionStatus) {