diff --git a/src/windowsystem/windoweffects.h b/src/windowsystem/windoweffects.h
--- a/src/windowsystem/windoweffects.h
+++ b/src/windowsystem/windoweffects.h
@@ -62,7 +62,9 @@
     void enableBlurBehind(QWindow *window, bool enable, const QRegion &region);
     void enableBackgroundContrast(WId winId, bool enable = true, qreal contrast = 1, qreal intensity = 1, qreal saturation = 1, const QRegion &region = QRegion()) override;
     void enableBackgroundContrast(QWindow *window, bool enable = true, qreal contrast = 1, qreal intensity = 1, qreal saturation = 1, const QRegion &region = QRegion());
+#if KWINDOWSYSTEM_BUILD_DEPRECATED_SINCE(5, 67)
     void markAsDashboard(WId window) override;
+#endif
 private:
     QHash<QWindow *, QMetaObject::Connection> m_windowWatchers;
     QHash<QWindow *, QRegion> m_blurRegions;
diff --git a/src/windowsystem/windoweffects.cpp b/src/windowsystem/windoweffects.cpp
--- a/src/windowsystem/windoweffects.cpp
+++ b/src/windowsystem/windoweffects.cpp
@@ -275,9 +275,9 @@
     }
 }
 
+#if KWINDOWSYSTEM_BUILD_DEPRECATED_SINCE(5, 67)
 void WindowEffects::markAsDashboard(WId window)
 {
     Q_UNUSED(window)
 }
-
-
+#endif