diff --git a/README.rst b/README.rst
index 476a46c0..6dabaed7 100644
--- a/README.rst
+++ b/README.rst
@@ -10,8 +10,8 @@ projects if you so choose, but please keep in mind that in doing so you're also
 choosing to accept some of the responsibility for maintaining that collective
 trust.
 
-To use the theme, install it into your docs build environment via ``pip`` 
-(preferably in a virtual environment).
+To use the theme, install it into your docs build environment via ``pip``
+(preferably in a virtual environment) and update your ``conf.py`` file as shown.
 
 1. Create and activate a virtual environment::
 
@@ -19,5 +19,17 @@ To use the theme, install it into your docs build environment via ``pip``
     $ source env/bin/activate
 
 2. Install python-docs-theme using `pip`::
-    
+
     (env)$ python -m pip install python-docs-theme
+
+3. In your ``conf.py`` file, add ``'python_docs_theme'`` to the loaded
+   extensions::
+
+       extensions = [
+           ...,
+           'python_docs_theme',
+       ]
+
+   and set it as the scheme for HTML output::
+
+       html_theme = 'python_docs_theme'