diff --git a/ApplicationCode/UserInterface/RiuQwtPlotWidget.cpp b/ApplicationCode/UserInterface/RiuQwtPlotWidget.cpp
index 54caa2a29b..c409d2a505 100644
--- a/ApplicationCode/UserInterface/RiuQwtPlotWidget.cpp
+++ b/ApplicationCode/UserInterface/RiuQwtPlotWidget.cpp
@@ -553,7 +553,7 @@ void RiuQwtPlotWidget::closeEvent( QCloseEvent* event )
     {
         m_plotDefinition->detachAllCurves();
     }
-    RiuQwtPlotWidget::closeEvent( event );
+    QwtPlot::closeEvent( event );
 }
 
 //--------------------------------------------------------------------------------------------------