diff --git a/src/plugins/qmldesigner/designercore/include/modelnode.h b/src/plugins/qmldesigner/designercore/include/modelnode.h
index c48f0792045..9b228d90f89 100644
--- a/src/plugins/qmldesigner/designercore/include/modelnode.h
+++ b/src/plugins/qmldesigner/designercore/include/modelnode.h
@@ -176,7 +176,7 @@ public:
 
     QVariant auxiliaryData(const PropertyName &name) const;
     void setAuxiliaryData(const PropertyName &name, const QVariant &data) const;
-    void removeAuxiliaryData(const PropertyName &name);
+    void removeAuxiliaryData(const PropertyName &name) const;
     bool hasAuxiliaryData(const PropertyName &name) const;
     QHash<PropertyName, QVariant> auxiliaryData() const;
 
diff --git a/src/plugins/qmldesigner/designercore/model/modelnode.cpp b/src/plugins/qmldesigner/designercore/model/modelnode.cpp
index e6610102b71..b078af6aef8 100644
--- a/src/plugins/qmldesigner/designercore/model/modelnode.cpp
+++ b/src/plugins/qmldesigner/designercore/model/modelnode.cpp
@@ -1005,7 +1005,7 @@ void ModelNode::setAuxiliaryData(const PropertyName &name, const QVariant &data)
     m_model.data()->d->setAuxiliaryData(internalNode(), name, data);
 }
 
-void ModelNode::removeAuxiliaryData(const PropertyName &name)
+void ModelNode::removeAuxiliaryData(const PropertyName &name) const
 {
     Internal::WriteLocker locker(m_model.data());
     m_model.data()->d->removeAuxiliaryData(internalNode(), name);