diff --git a/src/inputpanel/QskInputPredictionBar.h b/src/inputpanel/QskInputPredictionBar.h
index d40dd121..9dc505b7 100644
--- a/src/inputpanel/QskInputPredictionBar.h
+++ b/src/inputpanel/QskInputPredictionBar.h
@@ -28,7 +28,7 @@ class QSK_EXPORT QskInputPredictionBar : public QskBox
   public Q_SLOTS:
     void setPrediction( const QStringList& );
 
-  private:
+  protected:
     QskAspect::Subcontrol substitutedSubcontrol(
         QskAspect::Subcontrol ) const override;