diff --git a/mantidimaging/eyes_tests/live_viewer_window_test.py b/mantidimaging/eyes_tests/live_viewer_window_test.py
index 7d9b49bea06..dea8105ce1b 100644
--- a/mantidimaging/eyes_tests/live_viewer_window_test.py
+++ b/mantidimaging/eyes_tests/live_viewer_window_test.py
@@ -54,7 +54,7 @@ def _make_simple_dir(self, directory: Path):
     @mock.patch("time.time", return_value=4000.0)
     def test_live_view_opens_without_data(self, _mock_time, _mock_image_watcher):
         self.imaging.show_live_viewer(self.live_directory)
-        self.check_target(widget=self.imaging.live_viewer)
+        self.check_target(widget=self.imaging.live_viewer_list[-1])
 
     @mock.patch('mantidimaging.gui.windows.live_viewer.presenter.LiveViewerWindowPresenter.load_image')
     @mock.patch('mantidimaging.gui.windows.live_viewer.model.ImageWatcher')
@@ -65,7 +65,7 @@ def test_live_view_opens_with_data(self, _mock_time, _mock_image_watcher, mock_l
         mock_load_image.return_value = self._generate_image()
         self.imaging.show_live_viewer(self.live_directory)
         self.imaging.live_viewer.presenter.model._handle_image_changed_in_list(image_list)
-        self.check_target(widget=self.imaging.live_viewer)
+        self.check_target(widget=self.imaging.live_viewer_list[-1])
 
     @mock.patch('mantidimaging.gui.windows.live_viewer.presenter.LiveViewerWindowPresenter.load_image')
     @mock.patch('mantidimaging.gui.windows.live_viewer.model.ImageWatcher')
@@ -76,7 +76,7 @@ def test_live_view_opens_with_bad_data(self, _mock_time, _mock_image_watcher, mo
         mock_load_image.side_effect = ValueError
         self.imaging.show_live_viewer(self.live_directory)
         self.imaging.live_viewer.presenter.model._handle_image_changed_in_list(image_list)
-        self.check_target(widget=self.imaging.live_viewer)
+        self.check_target(widget=self.imaging.live_viewer_list[-1])
 
     @mock.patch('mantidimaging.gui.windows.live_viewer.presenter.LiveViewerWindowPresenter.load_image')
     @mock.patch('mantidimaging.gui.windows.live_viewer.model.ImageWatcher')
@@ -88,4 +88,4 @@ def test_rotate_operation_rotates_image(self, _mock_time, _mock_image_watcher, m
         self.imaging.show_live_viewer(self.live_directory)
         self.imaging.live_viewer.presenter.model._handle_image_changed_in_list(image_list)
         self.imaging.live_viewer.rotate_angles_group.actions()[1].trigger()
-        self.check_target(widget=self.imaging.live_viewer)
+        self.check_target(widget=self.imaging.live_viewer_list[-1])