diff --git a/firmware/config/engines/readme.md b/firmware/config/engines/readme.md
index 30a5d115bc..dbf590ba57 100644
--- a/firmware/config/engines/readme.md
+++ b/firmware/config/engines/readme.md
@@ -1,3 +1,6 @@
 Please do not be afraid of the content of this folder. You would NOT need your own file to start your own engine.
 
-See http://rusefi.com/wiki/index.php?title=Manual:Engine_Type
\ No newline at end of file
+See http://rusefi.com/wiki/index.php?title=Manual:Engine_Type
+
+This folder is also used by continutes integration testing suite.
+