diff --git a/src/qwaylandlayersurface.cpp b/src/qwaylandlayersurface.cpp
index 16bc12e..cc0b2b3 100644
--- a/src/qwaylandlayersurface.cpp
+++ b/src/qwaylandlayersurface.cpp
@@ -110,9 +110,13 @@ void QWaylandLayerSurface::attachPopup(QtWaylandClient::QWaylandShellSurface *po
 
 void QWaylandLayerSurface::applyConfigure()
 {
+#if QT_VERSION < QT_VERSION_CHECK(6, 9, 0)
     m_configuring = true;
+#endif
     window()->resizeFromApplyConfigure(m_pendingSize);
+#if QT_VERSION < QT_VERSION_CHECK(6, 9, 0)
     m_configuring = false;
+#endif
 }
 
 void QWaylandLayerSurface::setDesiredSize(const QSize &size)
@@ -163,6 +167,7 @@ void QWaylandLayerSurface::setLayer(uint32_t layer)
         set_layer(layer);
 }
 
+#if QT_VERSION < QT_VERSION_CHECK(6, 9, 0)
 void QWaylandLayerSurface::setWindowGeometry(const QRect &geometry)
 {
     if (m_configuring) {
@@ -171,6 +176,12 @@ void QWaylandLayerSurface::setWindowGeometry(const QRect &geometry)
 
     setDesiredSize(geometry.size());
 }
+#else
+void QWaylandLayerSurface::setWindowSize(const QSize &size)
+{
+    setDesiredSize(size);
+}
+#endif
 
 bool QWaylandLayerSurface::requestActivate()
 {
diff --git a/src/qwaylandlayersurface_p.h b/src/qwaylandlayersurface_p.h
index a829acd..079a295 100644
--- a/src/qwaylandlayersurface_p.h
+++ b/src/qwaylandlayersurface_p.h
@@ -43,7 +43,11 @@ public:
     void setLayer(uint32_t layer);
 
     void applyConfigure() override;
+#if QT_VERSION < QT_VERSION_CHECK(6, 9, 0)
     void setWindowGeometry(const QRect &geometry) override;
+#else
+    void setWindowSize(const QSize &size) override;
+#endif
 
     bool requestActivate() override;
     void setXdgActivationToken(const QString &token) override;
@@ -61,7 +65,9 @@ private:
     QString m_activationToken;
 
     bool m_configured = false;
+#if QT_VERSION < QT_VERSION_CHECK(6, 9, 0)
     bool m_configuring = false;
+#endif
 };
 
 }