diff --git a/tests/auto/widgets/widgets/qsplitter/tst_qsplitter.cpp b/tests/auto/widgets/widgets/qsplitter/tst_qsplitter.cpp
index 071e6d4cbce..465df2c1f49 100644
--- a/tests/auto/widgets/widgets/qsplitter/tst_qsplitter.cpp
+++ b/tests/auto/widgets/widgets/qsplitter/tst_qsplitter.cpp
@@ -861,7 +861,7 @@ void tst_QSplitter::replaceWidgetWhileHidden()
         newWidget->hide();
 
     const bool wasExplicitHide = !widgetVisible && newWidget->testAttribute(Qt::WA_WState_ExplicitShowHide);
-    splitter.replaceWidget(1, newWidget);
+    const std::unique_ptr<QWidget> reaper{splitter.replaceWidget(1, newWidget)};
 
     QCOMPARE(!widgetVisible && newWidget->testAttribute(Qt::WA_WState_ExplicitShowHide), wasExplicitHide);