diff --git a/start.sh b/start.sh
index 160f12c..693a0bc 100755
--- a/start.sh
+++ b/start.sh
@@ -14,6 +14,7 @@ if [[ ! -f /app/data/env.sh ]]; then
     # https://github.com/minio/minio#things-to-consider
     echo -e "MINIO_BROWSER_REDIRECT_URI=$(echo $CLOUDRON_APP_ORIGIN)" >> /app/data/env.sh
     # https://github.com/minio/minio/blob/master/docs/sts/ldap.md
+    # https://docs.min.io/minio/baremetal/security/ad-ldap-external-identity-management/configure-ad-ldap-external-identity-management.html#minio-authenticate-using-ad-ldap-generic
     # (address)   AD/LDAP server address e.g. "myldapserver.com:636"
     echo -e "MINIO_IDENTITY_LDAP_SERVER_ADDR='$(echo $CLOUDRON_LDAP_URL)'" >> /app/data/env.sh
     # (string)    DN for LDAP read-only service account used to perform DN and group lookups