diff --git a/modules/mega-mcu144/readme.md b/modules/mega-mcu144/readme.md
index 6832bcd..f4c2f1b 100644
--- a/modules/mega-mcu144/readme.md
+++ b/modules/mega-mcu144/readme.md
@@ -1 +1,3 @@
 https://github.com/andreika-git/hellen-one/wiki/module-mega-mcu
+
+See also https://github.com/rusefi/fw-custom-hellen144-f4