diff --git a/misc/jenkins/build_working_folder.sh b/misc/jenkins/build_working_folder.sh
index 66106e4f57..c3e9df443b 100755
--- a/misc/jenkins/build_working_folder.sh
+++ b/misc/jenkins/build_working_folder.sh
@@ -30,6 +30,7 @@ mkdir $DRIVERS_FOLDER
 mkdir $OPENBLT_FOLDER
 ls -l $FOLDER
 
+# this magic file is created manually using 'make_package2.bat'
 wget https://rusefi.com/build_server/st_files/silent_st_drivers2.exe -P $DRIVERS_FOLDER
 [ -e $DRIVERS_FOLDER/silent_st_drivers2.exe ] || { echo "$SCRIPT_NAME: ERROR DOWNLOADING silent_st_drivers2.exe"; exit 1; }