diff --git a/docs/conf.py b/docs/conf.py
index e11de2fa563d3717dbde39a65da8405d9f69870e..5bc0c3b62b9ad1d200e47f8858cbbc1fec323226 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -140,8 +140,8 @@ pygments_style = 'sphinx'
 
 # The theme to use for HTML and HTML Help pages.  See the documentation for
 # a list of builtin themes.
-# html_theme = 'alabaster'
-html_theme = 'sphinx_rtd_theme' #official readthedocs theme used also by Martin
+html_theme = 'alabaster'
+# html_theme = 'sphinx_rtd_theme'  # official readthedocs theme used also by Martin
 
 # 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