diff --git a/README b/README
index 83b406b..b018466 100644
--- a/README
+++ b/README
@@ -21,8 +21,14 @@ Minimal examples (very simple packages forged to exhibit unexpected
 behaviour from namcap) are also welcome to extend namcap's test suite.
 
 If you've a patch (fixing a bug or a new namcap module), then you can send it 
-to the arch-projects mailing list. Namcap development is managed with git, so
-git-formatted patches are preferred. 
+to the arch-projects mailing list.
+
+Namcap development is managed with git, so git-formatted patches are preferred.
+When sending patches to the mailing list, make sure to set a valid
+subjectprefix, otherwise the email will be rejected by Mailman.  Git can be
+configured as follows:
+
+git config format.subjectprefix namcap] [PATCH'
 
 Namcap's source is available on: