diff --git a/plugins/windowsystem/windoweffects.h b/plugins/windowsystem/windoweffects.h
--- a/plugins/windowsystem/windoweffects.h
+++ b/plugins/windowsystem/windoweffects.h
@@ -19,6 +19,7 @@
  */
 #pragma once
 #include <KWindowSystem/private/kwindoweffects_p.h>
+#include <kwindowsystem_version.h>
 
 namespace KWin
 {
@@ -31,7 +32,9 @@
 
     bool isEffectAvailable(KWindowEffects::Effect effect) override;
     void slideWindow(WId id, KWindowEffects::SlideFromLocation location, int offset) override;
+#if KWINDOWSYSTEM_VERSION <= QT_VERSION_CHECK(5, 61, 0)
     void slideWindow(QWidget *widget, KWindowEffects::SlideFromLocation location) override;
+#endif
     QList<QSize> windowSizes(const QList<WId> &ids) override;
     void presentWindows(WId controller, const QList<WId> &ids) override;
     void presentWindows(WId controller, int desktop = NET::OnAllDesktops) override;
diff --git a/plugins/windowsystem/windoweffects.cpp b/plugins/windowsystem/windoweffects.cpp
--- a/plugins/windowsystem/windoweffects.cpp
+++ b/plugins/windowsystem/windoweffects.cpp
@@ -81,10 +81,12 @@
     w->setProperty("kwin_slide_offset", offset);
 }
 
+#if KWINDOWSYSTEM_VERSION <= QT_VERSION_CHECK(5, 61, 0)
 void WindowEffects::slideWindow(QWidget *widget, KWindowEffects::SlideFromLocation location)
 {
     slideWindow(widget->winId(), location, 0);
 }
+#endif
 
 QList<QSize> WindowEffects::windowSizes(const QList<WId> &ids)
 {