diff --git a/autotests/integration/maximize_test.cpp b/autotests/integration/maximize_test.cpp
--- a/autotests/integration/maximize_test.cpp
+++ b/autotests/integration/maximize_test.cpp
@@ -174,7 +174,6 @@
     QCOMPARE(client->geometry(), QRect(0, 0, 100, 50));
     QEXPECT_FAIL("", "Should go out of maximzied", Continue);
     QCOMPARE(client->maximizeMode(), MaximizeMode::MaximizeRestore);
-    QVERIFY(client->shellSurface()->isMaximized());
 }
 
 void TestMaximized::testBorderlessMaximizedWindow()
diff --git a/shell_client.h b/shell_client.h
--- a/shell_client.h
+++ b/shell_client.h
@@ -69,10 +69,6 @@
     void setOpacity(double opacity) override;
     QByteArray windowRole() const override;
 
-    KWayland::Server::ShellSurfaceInterface *shellSurface() const {
-        return m_shellSurface;
-    }
-
     void blockActivityUpdates(bool b = true) override;
     QString captionNormal() const override {
         return m_caption;