diff --git a/src/Communication/Connection.php b/src/Communication/Connection.php
index e98cd1e..b52e391 100644
--- a/src/Communication/Connection.php
+++ b/src/Communication/Connection.php
@@ -116,8 +116,8 @@ public function __construct($socketClient, LoggerInterface $logger = null, int $
                 }
 
                 $curl = \curl_init($configURL);
-                \curl_setopt($curl, CURLOPT_URL, $configURL);
-                \curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
+                \curl_setopt($curl, \CURLOPT_URL, $configURL);
+                \curl_setopt($curl, \CURLOPT_RETURNTRANSFER, true);
                 $resp = \curl_exec($curl);
                 \curl_close($curl);