diff --git a/krunner/view.cpp b/krunner/view.cpp
--- a/krunner/view.cpp
+++ b/krunner/view.cpp
@@ -222,7 +222,7 @@
     const bool retval = Dialog::event(event);
     bool setState = event->type() == QEvent::Show;
     if (event->type() == QEvent::PlatformSurface) {
-        if (auto e = dynamic_cast<QPlatformSurfaceEvent*>(event)) {
+        if (auto e = static_cast<QPlatformSurfaceEvent*>(event)) {
             setState = e->surfaceEventType() == QPlatformSurfaceEvent::SurfaceCreated;
         }
     }
diff --git a/ksmserver/shutdowndlg.cpp b/ksmserver/shutdowndlg.cpp
--- a/ksmserver/shutdowndlg.cpp
+++ b/ksmserver/shutdowndlg.cpp
@@ -224,7 +224,7 @@
 bool KSMShutdownDlg::event(QEvent *e)
 {
     if (e->type() == QEvent::PlatformSurface) {
-        if (auto pe = dynamic_cast<QPlatformSurfaceEvent*>(e)) {
+        if (auto pe = static_cast<QPlatformSurfaceEvent*>(e)) {
             switch (pe->surfaceEventType()) {
             case QPlatformSurfaceEvent::SurfaceCreated:
                 setupWaylandIntegration();
diff --git a/ksmserver/switchuserdialog.cpp b/ksmserver/switchuserdialog.cpp
--- a/ksmserver/switchuserdialog.cpp
+++ b/ksmserver/switchuserdialog.cpp
@@ -130,7 +130,7 @@
 bool KSMSwitchUserDialog::event(QEvent *e)
 {
     if (e->type() == QEvent::PlatformSurface) {
-        if (auto pe = dynamic_cast<QPlatformSurfaceEvent*>(e)) {
+        if (auto pe = static_cast<QPlatformSurfaceEvent*>(e)) {
             switch (pe->surfaceEventType()) {
             case QPlatformSurfaceEvent::SurfaceCreated:
                 setupWaylandIntegration();
diff --git a/shell/desktopview.cpp b/shell/desktopview.cpp
--- a/shell/desktopview.cpp
+++ b/shell/desktopview.cpp
@@ -198,7 +198,7 @@
 bool DesktopView::event(QEvent *e)
 {
     if (e->type() == QEvent::PlatformSurface) {
-        if (auto pe = dynamic_cast<QPlatformSurfaceEvent*>(e)) {
+        if (auto pe = static_cast<QPlatformSurfaceEvent*>(e)) {
             switch (pe->surfaceEventType()) {
             case QPlatformSurfaceEvent::SurfaceCreated:
                 setupWaylandIntegration();
diff --git a/shell/panelconfigview.cpp b/shell/panelconfigview.cpp
--- a/shell/panelconfigview.cpp
+++ b/shell/panelconfigview.cpp
@@ -236,7 +236,7 @@
 bool PanelConfigView::event(QEvent *e)
 {
     if (e->type() == QEvent::PlatformSurface) {
-        if (auto pe = dynamic_cast<QPlatformSurfaceEvent*>(e)) {
+        if (auto pe = static_cast<QPlatformSurfaceEvent*>(e)) {
             switch (pe->surfaceEventType()) {
             case QPlatformSurfaceEvent::SurfaceCreated:
                 if (m_shellSurface) {
diff --git a/shell/panelview.cpp b/shell/panelview.cpp
--- a/shell/panelview.cpp
+++ b/shell/panelview.cpp
@@ -899,7 +899,7 @@
             break;
         }
         case QEvent::PlatformSurface:
-            if (auto pe = dynamic_cast<QPlatformSurfaceEvent*>(e)) {
+            if (auto pe = static_cast<QPlatformSurfaceEvent*>(e)) {
                 switch (pe->surfaceEventType()) {
                 case QPlatformSurfaceEvent::SurfaceCreated:
                     setupWaylandIntegration();