diff --git a/b_asic/gui_utils/plot_window.py b/b_asic/gui_utils/plot_window.py
index 991baaea088fff07e1dd88c71e06c46d036f6f33..c156411e93c947fe47a5c3729468d72ba806054a 100644
--- a/b_asic/gui_utils/plot_window.py
+++ b/b_asic/gui_utils/plot_window.py
@@ -135,8 +135,9 @@ class PlotWindow(QWidget):
             self._lines[key] = line[0]
 
         self._plot_canvas = FigureCanvas(self._plot_fig)
+        self._toolbar = NavigationToolbar(self._plot_canvas, self)
 
-        plotlayout.addWidget(NavigationToolbar(self._plot_canvas, self))
+        plotlayout.addWidget(self._toolbar)
         plotlayout.addWidget(self._plot_canvas)
 
         ########### List layout: ##############