diff --git a/docs/source/conf.py b/docs/source/conf.py
index f8faa03a09b2..7f5fe9d43d5f 100644
--- a/docs/source/conf.py
+++ b/docs/source/conf.py
@@ -107,6 +107,12 @@
 # a list of builtin themes.
 html_theme = "furo"
 
+html_theme_options = {
+    "source_repository": "https://github.com/python/mypy",
+    "source_branch": "master",
+    "source_directory": "docs/source",
+}
+
 # Theme options are theme-specific and customize the look and feel of a theme
 # further.  For a list of options available for each theme, see the
 # documentation.