diff --git a/test/io/fixtures/roles.sql b/test/io/fixtures/roles.sql
index fbe8d8ac9..f19f2b5af 100644
--- a/test/io/fixtures/roles.sql
+++ b/test/io/fixtures/roles.sql
@@ -15,6 +15,8 @@ GRANT
   postgrest_test_serializable, postgrest_test_repeatable_read,
   postgrest_test_w_superuser_settings, postgrest_test_work_mem TO :"PGUSER";
 
+GRANT postgrest_test_anonymous TO timeout_authenticator;
+
 ALTER ROLE :"PGUSER" SET pgrst.db_anon_role = 'postgrest_test_anonymous';
 ALTER ROLE postgrest_test_serializable SET default_transaction_isolation = 'serializable';
 ALTER ROLE postgrest_test_repeatable_read SET default_transaction_isolation = 'REPEATABLE READ';