diff --git a/src/Client.php b/src/Client.php
index 7b139df..304b9a1 100644
--- a/src/Client.php
+++ b/src/Client.php
@@ -92,13 +92,14 @@ class Client extends JsonRpc
      */
     protected function post($payload, $options = [])
     {
+        $uri = 'rpc/json-rpc-v2.json?app='.$this->config['app'];
         try {
             $headers = [
                 'X-Client-App' => $this->config['app'],
 	            'X-Request-Id' => app('request')->header('X-Request-Id')
             ];
             app('rpc.logger')->info("client_request", array_merge($this->server_config, $payload));
-            $resp = $this->http->request('POST', 'rpc/json-rpc-v2.json', array_merge([
+            $resp = $this->http->request('POST', $uri, array_merge([
                 'headers' => $headers,
                 'json' => $payload,
             ], $options));