diff --git a/.b4-config b/.b4-config
index d568669864..0c6966c0c8 100644
--- a/.b4-config
+++ b/.b4-config
@@ -1,6 +1,7 @@
 # Configuration for the `b4` tool
 # See https://b4.docs.kernel.org/en/latest/config.html
 [b4]
+    send-prefixes = 2025.02.x
     send-series-to = buildroot@buildroot.org
     send-auto-cc-cmd = "./utils/get-developers -e -"
     prep-perpatch-check-cmd = "./utils/check-package -q -p -"