diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 24351a612efe8a821d4958a373acb274932fd2eb..3ad832dcc2cf1e71e5e688bbd324a4ee4b5bd7c2 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -174,3 +174,9 @@ request.
         Target Branch: next
         Source Branch: my-new-idea-for-tutorial
 
+6. While it's possible to discuss the details of the merge request via the
+   web interface, for larger changes, it may be worthwhile to start a thread
+   on
+   [the mailing list](http://lists.copyleft.org/cgi-bin/mailman/listinfo/discuss)
+   about the merge request.  Include the URL of the merge request in the
+   post.