diff --git a/docs/conf.py b/docs/conf.py
index 5dd3524..7047f18 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -124,7 +124,7 @@
         html_theme = "default"
         html_theme_path = ["."]
 else:
-    html_theme = "default"
+    html_theme = "sphinx_rtd_theme"
     html_theme_path = ["."]
 
 # Add any paths that contain custom static files (such as style sheets) here,