diff --git a/docs/source/conf.py b/docs/source/conf.py
index a236bd4e..6607e6ba 100644
--- a/docs/source/conf.py
+++ b/docs/source/conf.py
@@ -237,6 +237,10 @@ ogp_use_first_image = True
 #
 rediraffe_branch = os.environ.get("REDIRAFFE_BRANCH", "main")
 rediraffe_redirects = "redirects.txt"
+
+# allow 80% match for autogenerated redirects
+rediraffe_auto_redirect_perc = 80
+
 # rediraffe_redirects = {
 # "old-file": "new-folder/new-file-name",
 # }