diff --git a/images/linux/scripts/installers/preparemetadata.sh b/images/linux/scripts/installers/preparemetadata.sh
index 45cfcabfa..a26e10968 100644
--- a/images/linux/scripts/installers/preparemetadata.sh
+++ b/images/linux/scripts/installers/preparemetadata.sh
@@ -7,6 +7,7 @@
 
 source $HELPER_SCRIPTS/document.sh
 
+WriteItem "<!--- DO NOT EDIT - This markdown file is autogenerated. -->"
 AddTitle "$(lsb_release -ds)"
 WriteItem "The following software is installed on machines with the $IMAGE_VERSION update."
 WriteItem "***"