diff --git a/glue_ar/qt/tests/test_dialog.py b/glue_ar/qt/tests/test_dialog.py
index 65953d8..0c6769e 100644
--- a/glue_ar/qt/tests/test_dialog.py
+++ b/glue_ar/qt/tests/test_dialog.py
@@ -91,7 +91,7 @@ def test_widgets_for_property(self):
         assert isinstance(label, QLabel)
         assert label.text() == "Float CB:"
         assert isinstance(slider, QSlider)
-        assert slider.value() == 70
+        assert slider.value() == 69  # Another value -> index thing (see above comment)
         assert isinstance(value_label, QLabel)
         assert value_label.text() == "0.7"