diff --git a/group_vars/matrix_servers b/group_vars/matrix_servers
index 587ef243..788aeca4 100755
--- a/group_vars/matrix_servers
+++ b/group_vars/matrix_servers
@@ -2239,6 +2239,8 @@ matrix_dendrite_disable_tls_validation: "{{ true if matrix_ssl_retrieval_method
 
 matrix_dendrite_self_check_validate_certificates: "{{ false if matrix_ssl_retrieval_method == 'self-signed' else true }}"
 
+matrix_dendrite_trusted_id_servers: "{{ [matrix_server_fqn_matrix] if matrix_ma1sd_enabled else ['matrix.org', 'vector.im'] }}"
+
 matrix_dendrite_systemd_required_services_list: |
   {{
     (['docker.service'])