diff --git a/src/plugins/cpptools/cppprojectupdater.h b/src/plugins/cpptools/cppprojectupdater.h
index 5d95fa087cf..8167b071cf0 100644
--- a/src/plugins/cpptools/cppprojectupdater.h
+++ b/src/plugins/cpptools/cppprojectupdater.h
@@ -47,7 +47,7 @@ public:
     Q_INVOKABLE CppTools::CppProjectUpdaterInterface *create();
 };
 
-class CPPTOOLS_EXPORT CppProjectUpdater : public QObject, public CppProjectUpdaterInterface
+class CPPTOOLS_EXPORT CppProjectUpdater final : public QObject, public CppProjectUpdaterInterface
 {
     Q_OBJECT