diff --git a/applets/pager/plugin/pagermodel.cpp b/applets/pager/plugin/pagermodel.cpp
--- a/applets/pager/plugin/pagermodel.cpp
+++ b/applets/pager/plugin/pagermodel.cpp
@@ -28,10 +28,10 @@
 #include <xwindowtasksmodel.h>
 #include <waylandtasksmodel.h>
 
-#include <QApplication>
 #include <QDBusConnection>
 #include <QDBusMessage>
 #include <QDBusPendingCall>
+#include <QGuiApplication>
 #include <QMetaEnum>
 #include <QScreen>
 
diff --git a/applets/pager/plugin/windowmodel.cpp b/applets/pager/plugin/windowmodel.cpp
--- a/applets/pager/plugin/windowmodel.cpp
+++ b/applets/pager/plugin/windowmodel.cpp
@@ -22,9 +22,9 @@
 
 #include <abstracttasksmodel.h>
 
-#include <QApplication>
-#include <QDesktopWidget>
+#include <QGuiApplication>
 #include <QMetaEnum>
+#include <QScreen>
 
 #include <KWindowSystem>
 
@@ -39,8 +39,6 @@
 
     PagerModel *pagerModel = nullptr;
 
-    QDesktopWidget *desktopWidget = QApplication::desktop();
-
 private:
     WindowModel *q;
 };
@@ -78,7 +76,8 @@
 {
     if (role == AbstractTasksModel::Geometry) {
         QRect windowGeo = TaskFilterProxyModel::data(index, role).toRect();
-        const QRect &desktopGeo = d->desktopWidget->geometry();
+        QList<QScreen *> screens = QGuiApplication::screens();
+        const QRect desktopGeo = screens.at(0)->geometry();
 
         if (KWindowSystem::mapViewport()) {
             int x = windowGeo.center().x() % desktopGeo.width();