diff --git a/src/plugins/platforms/wayland/qwaylandwindow.cpp b/src/plugins/platforms/wayland/qwaylandwindow.cpp
index 505836296c4..d7bb6c6529a 100644
--- a/src/plugins/platforms/wayland/qwaylandwindow.cpp
+++ b/src/plugins/platforms/wayland/qwaylandwindow.cpp
@@ -1500,6 +1500,13 @@ QVariant QWaylandWindow::property(const QString &name, const QVariant &defaultVa
     return m_properties.value(name, defaultValue);
 }
 
+#ifdef QT_PLATFORM_WINDOW_HAS_VIRTUAL_SET_BACKING_STORE
+void QWaylandWindow::setBackingStore(QPlatformBackingStore *store)
+{
+    mBackingStore = dynamic_cast<QWaylandShmBackingStore *>(store);
+}
+#endif
+
 void QWaylandWindow::timerEvent(QTimerEvent *event)
 {
     if (event->timerId() != mFrameCallbackCheckIntervalTimerId)
diff --git a/src/plugins/platforms/wayland/qwaylandwindow_p.h b/src/plugins/platforms/wayland/qwaylandwindow_p.h
index 042ea56603b..17140c52e9f 100644
--- a/src/plugins/platforms/wayland/qwaylandwindow_p.h
+++ b/src/plugins/platforms/wayland/qwaylandwindow_p.h
@@ -201,7 +201,11 @@ public:
     QVariant property(const QString &name);
     QVariant property(const QString &name, const QVariant &defaultValue);
 
+#ifdef QT_PLATFORM_WINDOW_HAS_VIRTUAL_SET_BACKING_STORE
+    void setBackingStore(QPlatformBackingStore *store) override;
+#else
     void setBackingStore(QWaylandShmBackingStore *backingStore) { mBackingStore = backingStore; }
+#endif
     QWaylandShmBackingStore *backingStore() const { return mBackingStore; }
 
     void setShellIntegration(QWaylandShellIntegration *shellIntegration);