diff --git a/gui/include/Visualization/VisualizationGraphWidget.h b/gui/include/Visualization/VisualizationGraphWidget.h
index 07db804..74b34ed 100644
--- a/gui/include/Visualization/VisualizationGraphWidget.h
+++ b/gui/include/Visualization/VisualizationGraphWidget.h
@@ -28,7 +28,7 @@ public:
     void accept(IVisualizationWidgetVisitor *visitor) override;
     bool canDrop(const Variable &variable) const override;
     void close() override;
-    QString name() const;
+    QString name() const override;
 
 private:
     Ui::VisualizationGraphWidget *ui;
diff --git a/gui/include/Visualization/VisualizationWidget.h b/gui/include/Visualization/VisualizationWidget.h
index 77e43f7..4e0dbe5 100644
--- a/gui/include/Visualization/VisualizationWidget.h
+++ b/gui/include/Visualization/VisualizationWidget.h
@@ -35,7 +35,7 @@ public:
     void accept(IVisualizationWidgetVisitor *visitor) override;
     bool canDrop(const Variable &variable) const override;
     void close() override;
-    QString name() const;
+    QString name() const override;
 
 public slots:
     /**