diff --git a/main/mashape/http/HttpClient.php b/main/mashape/http/HttpClient.php
index 319a1aa..6a3e004 100755
--- a/main/mashape/http/HttpClient.php
+++ b/main/mashape/http/HttpClient.php
@@ -35,8 +35,8 @@ require_once(dirname(__FILE__) . "/../authentication/BasicAuthentication.php");
 require_once(dirname(__FILE__) . "/../authentication/CustomHeaderAuthentication.php");
 require_once(dirname(__FILE__) . "/../authentication/MashapeAuthentication.php");
 require_once(dirname(__FILE__) . "/../authentication/QueryAuthentication.php");
-require_once(dirname(__FILE__) . "/../authentication/Oauth10aAuthentication.php");
-require_once(dirname(__FILE__) . "/../authentication/Oauth2Authentication.php");
+require_once(dirname(__FILE__) . "/../authentication/OAuth10aAuthentication.php");
+require_once(dirname(__FILE__) . "/../authentication/OAuth2Authentication.php");
 
 class HttpClient {