diff --git a/src/plugins/qmldesigner/components/propertyeditor/qmlanchorbindingproxy.cpp b/src/plugins/qmldesigner/components/propertyeditor/qmlanchorbindingproxy.cpp
index b4ec89d3687..dc3ed7c30ee 100644
--- a/src/plugins/qmldesigner/components/propertyeditor/qmlanchorbindingproxy.cpp
+++ b/src/plugins/qmldesigner/components/propertyeditor/qmlanchorbindingproxy.cpp
@@ -894,7 +894,11 @@ QmlItemNode QmlAnchorBindingProxy::targetIdToNode(const QString &id) const
 
 QString QmlAnchorBindingProxy::idForNode(const QmlItemNode &qmlItemNode) const
 {
-    QTC_ASSERT(qmlItemNode.isValid(), return {});
+    QTC_ASSERT(qmlItemNode.modelNode().isValid(), return {});
+
+    if (!qmlItemNode.isValid())
+        return qmlItemNode.id();
+
     if (m_qmlItemNode.instanceParent().modelNode() == qmlItemNode)
         return QStringLiteral("parent");