diff --git a/TrackerPlugin_EyeTracker.h b/TrackerPlugin_EyeTracker.h
index 37b351b..8869b55 100644
--- a/TrackerPlugin_EyeTracker.h
+++ b/TrackerPlugin_EyeTracker.h
@@ -48,11 +48,6 @@ class TrackerPlugin_EyeTracker : public QWidget, public TrackerInterface
     QVector<QPen*> plotPens;
     QVector<QPen*> rectPens;
 
-    QLine pLineV;
-    QLine pLineH;
-    QLine cLineH;
-    QLine cLineV;
-
     QVector<QVector<QPointF>*> rectSamples;
     QVector<QwtPointSeriesData*> rectData;
     QVector<QwtPlotCurve*> curves;