diff --git a/src/Client.php b/src/Client.php
index 210e053..5016908 100644
--- a/src/Client.php
+++ b/src/Client.php
@@ -24,7 +24,7 @@ class Client
         $default = [
             'app' => '***',
             'log_path'=> "/logs/rpc_monitor_".date("Ymd").".log",
-            'log_formatter' => JsonRpc\Logging\LogstashFormatter::class,
+            'log_formatter' => \JsonRpc\Logging\LogstashFormatter::class,
         ];
         $this->config = array_merge($default, $config);
         $stream = new StreamHandler(app()->storagePath().$this->config['log_path']);