diff --git a/docs/conf.py b/docs/conf.py
index 5a6f9ce16..9d09b11e4 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -100,7 +100,7 @@ html_theme = "sphinx_rtd_theme"
 # html_theme_options = {}
 
 # Add any paths that contain custom themes here, relative to this directory.
-html_theme_path = ["_themes", ]
+html_theme_path = ["_themes"]
 
 # The name for this set of Sphinx documents.  If None, it defaults to
 # "<project> v<release> documentation".