diff --git a/README b/README
index e9f4c858e..0701dbbe2 100644
--- a/README
+++ b/README
@@ -24,12 +24,12 @@ for full details on how to submit changes.
 As a quick guide, patches should be sent to bitbake-devel@lists.openembedded.org
 The git command to do that would be:
 
-    git send-email -M -1 --to bitbake-devel@lists.openembedded.org
+    git send-email -M -1 --to bitbake-devel@lists.openembedded.org --subject-prefix="2.18][PATCH
 
 If you're sending a patch related to the BitBake manual, make sure you copy
 the Yocto Project documentation mailing list:
 
-    git send-email -M -1 --to bitbake-devel@lists.openembedded.org --cc docs@lists.yoctoproject.org
+    git send-email -M -1 --to bitbake-devel@lists.openembedded.org --cc docs@lists.yoctoproject.org --subject-prefix="2.18][PATCH
 
 Mailing list: