diff --git a/src/plugins/qmldesigner/designercore/model/modelnode.cpp b/src/plugins/qmldesigner/designercore/model/modelnode.cpp
index e249e2fb6a3..ee3c863ac0d 100644
--- a/src/plugins/qmldesigner/designercore/model/modelnode.cpp
+++ b/src/plugins/qmldesigner/designercore/model/modelnode.cpp
@@ -1036,7 +1036,7 @@ QVariant ModelNode::toVariant() const
     return QVariant::fromValue(*this);
 }
 
-const QVariant ModelNode::auxiliaryData(const PropertyName &name) const
+QVariant ModelNode::auxiliaryData(const PropertyName &name) const
 {
     if (!isValid())
         throw InvalidModelNodeException(__LINE__, __FUNCTION__, __FILE__);