diff --git a/docs/cookbooks/ResidualOutlierDetection.rst b/docs/cookbooks/ResidualOutlierDetection.rst
index 2f53d71b87c66ef4869db6956f2e55062b66caba..e5a581fe1f363f77341cc69ae8aa526c3506343c 100644
--- a/docs/cookbooks/ResidualOutlierDetection.rst
+++ b/docs/cookbooks/ResidualOutlierDetection.rst
@@ -273,7 +273,7 @@ To see all the results obtained so far, plotted in one figure window, we make us
 .. doctest:: exampleOD
 
    >>> data.to_df().plot()
-   <AxesSubplot: >
+   <Axes...>
 
 .. plot::
    :context: