diff --git a/GUI/View/ParEdit/FitParameterDelegate.h b/GUI/View/ParEdit/FitParameterDelegate.h
index d16a3f0a3e9eb50c05f1a8102c80f960b0a03607..77b74c686a64c5d7ef21c974657cc9368fbec4ab 100644
--- a/GUI/View/ParEdit/FitParameterDelegate.h
+++ b/GUI/View/ParEdit/FitParameterDelegate.h
@@ -42,13 +42,11 @@ public:
     void updateEditorGeometry(QWidget* editor, const QStyleOptionViewItem& option,
                               const QModelIndex& index) const override;
 
-protected:
-    virtual QWidget* createEditorFromIndex(const QModelIndex& index, QWidget* parent) const;
-
 public slots:
     void onCustomEditorDataChanged(const QVariant&);
 
 private:
+    QWidget* createEditorFromIndex(const QModelIndex& index, QWidget* parent) const;
     void paintCustomLabel(QPainter* painter, const QStyleOptionViewItem& option,
                           const QModelIndex& index, const QString& text) const;
 };