diff --git a/tests/tst_docks.cpp b/tests/tst_docks.cpp
index f36d611d..acae1724 100644
--- a/tests/tst_docks.cpp
+++ b/tests/tst_docks.cpp
@@ -6155,7 +6155,9 @@ void TestDocks::tst_constraintsAfterPlaceholder()
     m->addDockWidget(dock2, Location_OnTop);
     m->addDockWidget(dock3, Location_OnTop);
 
+#ifdef KDDOCKWIDGETS_QTWIDGETS
     QVERIFY(Testing::waitForResize(m.get()));
+#endif
 
     QVERIFY(widgetMinLength(m.get(), Qt::Vertical) > minHeight * 3); // > since some vertical space is occupied by the separators