diff --git a/src/plugins/qmldesigner/components/propertyeditor/qmlmodelnodeproxy.cpp b/src/plugins/qmldesigner/components/propertyeditor/qmlmodelnodeproxy.cpp
index 3daa6c4ecce..fc39b371375 100644
--- a/src/plugins/qmldesigner/components/propertyeditor/qmlmodelnodeproxy.cpp
+++ b/src/plugins/qmldesigner/components/propertyeditor/qmlmodelnodeproxy.cpp
@@ -151,6 +151,8 @@ PropertyEditorSubSelectionWrapper *QmlModelNodeProxy::registerSubSelectionWrappe
         new PropertyEditorSubSelectionWrapper(node));
     m_subselection.append(wrapper);
 
+    QJSEngine::setObjectOwnership(wrapper.data(), QJSEngine::CppOwnership);
+
     return wrapper.data();
 }