diff --git a/build.py b/build.py
index a0abb7d..533cf19 100755
--- a/build.py
+++ b/build.py
@@ -33,7 +33,7 @@ def main():
             '-b', 'html',
             '-D', 'project={}'.format(doc),
             '-D', 'master_doc={}'.format('index'),
-            # '-D', 'html_theme={}'.format('sphinx_rtd_theme'),
+            '-D', 'html_theme={}'.format('sphinx_rtd_theme'),
             # '-C',
             '-c', directory,
             os.path.join(directory, doc),