diff --git a/Docs/conf.py b/Docs/conf.py
index 32a0452..7ded988 100644
--- a/Docs/conf.py
+++ b/Docs/conf.py
@@ -27,8 +27,7 @@
 # Add any Sphinx extension module names here, as strings. They can be
 # extensions coming with Sphinx (named 'sphinx.ext.*') or your custom
 # ones.
-extensions = [
-]
+extensions = ['sphinx_rtd_theme']
 
 # Add any paths that contain templates here, relative to this directory.
 templates_path = ['_templates']