diff --git a/src/gui/attributetable/qgsvectorlayerselectionmanager.h b/src/gui/attributetable/qgsvectorlayerselectionmanager.h
index 7c245e4d508..8675aafe689 100644
--- a/src/gui/attributetable/qgsvectorlayerselectionmanager.h
+++ b/src/gui/attributetable/qgsvectorlayerselectionmanager.h
@@ -41,9 +41,13 @@ class GUI_EXPORT QgsVectorLayerSelectionManager : public QgsIFeatureSelectionMan
     void deselect( const QgsFeatureIds &ids ) override;
     void setSelectedFeatures( const QgsFeatureIds &ids ) override;
     const QgsFeatureIds &selectedFeatureIds() const override;
+
+    /**
+     * Returns the vector layer
+     */
     QgsVectorLayer *layer() const;
 
-  protected slots:
+  private slots:
     virtual void onSelectionChanged( const QgsFeatureIds &selected, const QgsFeatureIds &deselected, bool clearAndSelect );
 
   private:
diff --git a/src/gui/qgsrelationeditorwidget.cpp b/src/gui/qgsrelationeditorwidget.cpp
index e99082d5fd4..95a4576bfe8 100644
--- a/src/gui/qgsrelationeditorwidget.cpp
+++ b/src/gui/qgsrelationeditorwidget.cpp
@@ -36,6 +36,8 @@
 #include <QLabel>
 #include <QMessageBox>
 
+/// @cond PRIVATE
+
 class QgsFilteredSelectionManager : public QgsVectorLayerSelectionManager
 {
   public:
@@ -94,6 +96,8 @@ class QgsFilteredSelectionManager : public QgsVectorLayerSelectionManager
     QgsFeatureIds mSelectedFeatureIds;
 };
 
+/// @endcond
+
 QgsRelationEditorWidget::QgsRelationEditorWidget( QWidget *parent )
   : QgsCollapsibleGroupBox( parent )
 {