diff --git a/README.md b/README.md
index c7a864b..6c0e480 100644
--- a/README.md
+++ b/README.md
@@ -299,6 +299,8 @@ Once you have added your biobank to the Directory you got persistent identifier
 
 The Bridgehead's **Directory Sync** is an optional feature that keeps the Directory up to date with your local data, e.g. number of samples. Conversely, it also updates the local FHIR store with the latest contact details etc. from the Directory. You must explicitly set your country specific directory URL, username and password to enable this feature.
 
+You should talk with your local data protection group regarding the information that is published by Directory sync.
+
 Full details can be found in [directory_sync_service](https://github.com/samply/directory_sync_service).
 
 To enable it, you will need to set these variables to the ```bbmri.conf``` file of your GitLab repository. Here is an example config:
@@ -307,6 +309,7 @@ To enable it, you will need to set these variables to the ```bbmri.conf``` file
 DS_DIRECTORY_URL=https://directory.bbmri-eric.eu
 DS_DIRECTORY_USER_NAME=your_directory_username
 DS_DIRECTORY_USER_PASS=qwdnqwswdvqHBVGFR9887
+DS_DIRECTORY_ALLOW_STAR_MODEL=true
 DS_TIMER_CRON="0 22 * * *"
 ```
 You must contact the Directory team for your national node to find the URL, and to register as a user.
diff --git a/bbmri/modules/directory-sync-compose.yml b/bbmri/modules/directory-sync-compose.yml
index 178f46c..60998f3 100644
--- a/bbmri/modules/directory-sync-compose.yml
+++ b/bbmri/modules/directory-sync-compose.yml
@@ -8,3 +8,5 @@ services:
       DS_DIRECTORY_USER_NAME: ${DS_DIRECTORY_USER_NAME}
       DS_DIRECTORY_PASS_CODE: ${DS_DIRECTORY_PASS_CODE}
       DS_TIMER_CRON: ${DS_TIMER_CRON}
+      # It is recommended to check the enabling of this flag with your local data protection group
+      DS_DIRECTORY_ALLOW_STAR_MODEL: ${DS_DIRECTORY_ALLOW_STAR_MODEL}