diff --git a/doc/conf.py b/doc/conf.py
index b8fd4d2..e365d88 100644
--- a/doc/conf.py
+++ b/doc/conf.py
@@ -56,6 +56,10 @@
 #
 html_theme = 'pydata_sphinx_theme'
 
+html_theme_options = {
+    'github_url': 'https://github.com/vforwater/hydrobox',
+}
+
 # Add any paths that contain custom static files (such as style sheets) here,
 # relative to this directory. They are copied after the builtin static files,
 # so a file named "default.css" will overwrite the builtin "default.css".