diff --git a/group_vars/matrix_servers b/group_vars/matrix_servers
index a7cbb0369..7962e137c 100755
--- a/group_vars/matrix_servers
+++ b/group_vars/matrix_servers
@@ -4203,6 +4203,8 @@ postgres_base_path: "{{ matrix_base_data_path }}/postgres"
 postgres_uid: "{{ matrix_user_uid }}"
 postgres_gid: "{{ matrix_user_gid }}"
 
+postgres_allowed_versions_auto: "{{ backup_borg_supported_postgres_versions | map('int') if backup_borg_enabled | default(false) and backup_borg_postgresql_enabled | default(false) else [] }}"
+
 postgres_connection_username: matrix
 postgres_db_name: matrix