diff --git a/.github/config.yml b/.github/config.yml
index 19c3656b1..4650149a9 100644
--- a/.github/config.yml
+++ b/.github/config.yml
@@ -1,2 +1,5 @@
+chronographer:
+  enforce_name:
+    suffix: .rst
 rtd:
   project: tox