diff --git a/doc/conf.py b/doc/conf.py
index b139579e63c626a34a5dc9cda91efde4cc383962..826c47669ea69cc3cce7dd6a1d3e6bd3be3c9d91 100644
--- a/doc/conf.py
+++ b/doc/conf.py
@@ -126,7 +126,7 @@ html_theme = 'scikit-learn'
 # Theme options are theme-specific and customize the look and feel of a theme
 # further.  For a list of options available for each theme, see the
 # documentation.
-html_theme_options = {'oldversion':False, 'collapsiblesidebar': True}
+html_theme_options = {'oldversion':True, 'collapsiblesidebar': True}
 
 # Add any paths that contain custom themes here, relative to this directory.
 html_theme_path = ['themes']