diff --git a/src/ClientFactory.php b/src/ClientFactory.php
index fabd620..001ce40 100644
--- a/src/ClientFactory.php
+++ b/src/ClientFactory.php
@@ -175,6 +175,7 @@ class ClientFactory {
           $settings['port'],
           $settings['base'],
           $settings['password'],
+          [], // There is no replication hosts.
           $settings['persistent']);
       }
     }