diff --git a/oslo_db/sqlalchemy/enginefacade.py b/oslo_db/sqlalchemy/enginefacade.py
index 80c320ba..cca694b0 100644
--- a/oslo_db/sqlalchemy/enginefacade.py
+++ b/oslo_db/sqlalchemy/enginefacade.py
@@ -164,15 +164,15 @@ class _TransactionFactory(object):
             'on_engine_create': [],
         }
 
-        # other options that are defined in oslo.db.options.database_opts
-        # but do not apply to the standard enginefacade arguments
-        # (most seem to apply to api.DBAPI).
+        # other options that are defined in oslo_db.options.database_opts
+        # or oslo_db.concurrency.tpool_opts but do not apply to the standard
+        # enginefacade arguments (most seem to apply to api.DBAPI).
         self._ignored_cfg = dict(
             (k, _Default(None)) for k in [
                 'db_max_retries', 'db_inc_retry_interval',
                 'use_db_reconnect',
                 'db_retry_interval', 'min_pool_size',
-                'db_max_retry_interval', 'backend'])
+                'db_max_retry_interval', 'backend', 'use_tpool'])
 
         self._started = False
         self._legacy_facade = None