diff --git a/qt/applications/workbench/workbench/plugins/test/test_workspacewidget.py b/qt/applications/workbench/workbench/plugins/test/test_workspacewidget.py
index 4e799c8b6ceb3a7615b3cc2999f65c3e9ceb6fe4..6caca049c49ff8c89a5cfdd3e1d2af51f77f89c3 100644
--- a/qt/applications/workbench/workbench/plugins/test/test_workspacewidget.py
+++ b/qt/applications/workbench/workbench/plugins/test/test_workspacewidget.py
@@ -71,7 +71,7 @@ class WorkspaceWidgetTest(unittest.TestCase, QtWidgetFinder):
     def test_plot_with_plot_bin(self,mock_plot):
         self.ws_widget._do_plot_bin([self.ws_names[0]], False, False)
         mock_plot.assert_called_once_with(unittest.mock.ANY,errors=False, overplot=False, wksp_indices=[0],
-            plot_kwargs={'axis': MantidAxType.BIN})
+                                          plot_kwargs={'axis': MantidAxType.BIN})
 
     @mock.patch('workbench.plugins.workspacewidget.plot_from_names', autospec=True)
     def test_plot_with_plot_spectrum(self,mock_plot_from_names):