diff --git a/src/BeSimple/SoapClient/Curl.php b/src/BeSimple/SoapClient/Curl.php
index 699e56c..d349f14 100644
--- a/src/BeSimple/SoapClient/Curl.php
+++ b/src/BeSimple/SoapClient/Curl.php
@@ -88,7 +88,7 @@ class Curl
             curl_setopt($this->ch, CURLOPT_PROXYUSERPWD, $options['proxy_user'] . ':' . $options['proxy_password']);
         }
         if (isset($options['login'])) {
-            curl_setopt($this->ch, CURLOPT_HTTPAUTH, CURLAUTH_ANY);
+            curl_setopt($this->ch, CURLOPT_HTTPAUTH, isset($options['extra_options']['http_auth']) ? $options['extra_options']['http_auth'] : CURLAUTH_ANY);
             curl_setopt($this->ch, CURLOPT_USERPWD, $options['login'].':'.$options['password']);
         }
         if (isset($options['local_cert'])) {
diff --git a/src/BeSimple/SoapClient/SoapClient.php b/src/BeSimple/SoapClient/SoapClient.php
index 55449c4..f4c3917 100644
--- a/src/BeSimple/SoapClient/SoapClient.php
+++ b/src/BeSimple/SoapClient/SoapClient.php
@@ -113,6 +113,11 @@ class SoapClient extends \SoapClient
             $this->cliWebserverWorkaround = $options['cli_webserver_workaround'];
         }
         $this->curl = new Curl($options);
+
+        if (isset($options['extra_options'])) {
+            unset($options['extra_options']);
+        }
+
         $wsdlFile = $this->loadWsdl($wsdl, $options);
         // TODO $wsdlHandler = new WsdlHandler($wsdlFile, $this->soapVersion);
         $this->soapKernel = new SoapKernel();