diff --git a/src/sas/qtgui/Plotting/Plotter.py b/src/sas/qtgui/Plotting/Plotter.py
index dc18d9b915..12266ab6ae 100644
--- a/src/sas/qtgui/Plotting/Plotter.py
+++ b/src/sas/qtgui/Plotting/Plotter.py
@@ -394,7 +394,7 @@ def addPlotsToContextMenu(self):
 
             if plot.is_data:
                 self.actionHideError = plot_menu.addAction("Hide Error Bar")
-                if plot.dy is not None and plot.dy != []:
+                if plot.dy is not None and len(plot.dy)>0:
                     if plot.hide_error:
                         self.actionHideError.setText('Show Error Bar')
                 else: