diff --git a/docs/MAINTAIN.md b/docs/MAINTAIN.md
index bcb40ea994a..67926b51c7b 100644
--- a/docs/MAINTAIN.md
+++ b/docs/MAINTAIN.md
@@ -23,4 +23,5 @@ The versions to use can be found as follow:
  
 ## Add family to CI
 
+Add the file stm32${FAMILY_L}xx_hal_conf.h file to the root folder of each test. (A template is provided in the corresponding HAL)
 Update the cmake.yml workflow file to include the new family