diff --git a/src/functions.php b/src/functions.php
index f38f8ac..aac3ec3 100644
--- a/src/functions.php
+++ b/src/functions.php
@@ -8,7 +8,7 @@ use Amp\Sql\Common\ConnectionPool;
 use Amp\Sql\ConnectionConfig as SqlConnectionConfig;
 use Amp\Sql\Connector;
 
-const LOOP_CONNECTOR_IDENTIFIER = Connector::class;
+const LOOP_CONNECTOR_IDENTIFIER = Connector::class . "\\Postgres";
 
 function connector(Connector $connector = null): Connector
 {