diff --git a/autotests/integration/maximize_test.cpp b/autotests/integration/maximize_test.cpp
index 226099c56a..b76f3a8043 100644
--- a/autotests/integration/maximize_test.cpp
+++ b/autotests/integration/maximize_test.cpp
@@ -122,8 +122,9 @@ void TestMaximized::testMaximizedPassedToDeco()
     QVERIFY(geometryShapeChangedSpy.isValid());
 
     workspace()->slotWindowMaximize();
-
-    Test::render(surface.data(), QSize(100, 50), Qt::red);
+    QVERIFY(sizeChangedSpy.wait());
+    QCOMPARE(sizeChangedSpy.first().first().toSize(), QSize(1280, 1024 - decoration->borderTop()));
+    Test::render(surface.data(), sizeChangedSpy.first().first().toSize(), Qt::red);
     QVERIFY(geometryShapeChangedSpy.wait());
     QCOMPARE(geometryShapeChangedSpy.count(), 2);
     QCOMPARE(client->maximizeMode(), MaximizeMode::MaximizeFull);
@@ -135,9 +136,6 @@ void TestMaximized::testMaximizedPassedToDeco()
     QCOMPARE(decoration->borderRight(), 0);
     QVERIFY(decoration->borderTop() != 0);
 
-    QCOMPARE(sizeChangedSpy.count(), 1);
-    QCOMPARE(sizeChangedSpy.first().first().toSize(), QSize(1280, 1024 - decoration->borderTop()));
-
     // now unmaximize again
     workspace()->slotWindowMaximize();