diff --git a/.b4-config b/.b4-config
index 047f0b94a..4d9ab7bd0 100644
--- a/.b4-config
+++ b/.b4-config
@@ -2,3 +2,4 @@
   send-series-to = bitbake-devel@lists.openembedded.org
   send-auto-cc-cmd = ./contrib/b4-wrapper-bitbake.py send-auto-cc-cmd
   prep-pre-flight-checks = disable-needs-checking
+  send-prefixes = 2.18