diff --git a/src/Omnipay/Sofort/Gateway.php b/src/Omnipay/Sofort/Gateway.php
index 750db6d..0c2ecd8 100644
--- a/src/Omnipay/Sofort/Gateway.php
+++ b/src/Omnipay/Sofort/Gateway.php
@@ -51,6 +51,16 @@ public function setProjectId($value)
         return $this->setParameter('projectId', $value);
     }
 
+    public function getCountry()
+    {
+        return $this->getParameter('country');
+    }
+
+    public function setCountry($value)
+    {
+        return $this->setParameter('country', $value);
+    }
+
     public function authorize(array $parameters = array())
     {
         return $this->createRequest('\Omnipay\Sofort\Message\AuthorizeRequest', $parameters);
diff --git a/src/Omnipay/Sofort/Message/AbstractRequest.php b/src/Omnipay/Sofort/Message/AbstractRequest.php
index 79562c0..a74455d 100644
--- a/src/Omnipay/Sofort/Message/AbstractRequest.php
+++ b/src/Omnipay/Sofort/Message/AbstractRequest.php
@@ -36,6 +36,16 @@ public function setProjectId($value)
         return $this->setParameter('projectId', $value);
     }
 
+    public function getCountry()
+    {
+        return $this->getParameter('country');
+    }
+
+    public function setCountry($value)
+    {
+        return $this->setParameter('country', $value);
+    }
+
     public function sendData($data)
     {
         $httpResponse = $this->httpClient
diff --git a/src/Omnipay/Sofort/Message/AuthorizeRequest.php b/src/Omnipay/Sofort/Message/AuthorizeRequest.php
index 1e7eb71..f840e18 100644
--- a/src/Omnipay/Sofort/Message/AuthorizeRequest.php
+++ b/src/Omnipay/Sofort/Message/AuthorizeRequest.php
@@ -11,7 +11,6 @@ public function getData()
         $data = new SimpleXMLElement('<?xml version="1.0" encoding="UTF-8"?><multipay/>');
 
         $data->addChild('project_id', $this->getProjectId());
-        $data->addChild('language_code', 'de');
         $data->addChild('amount', $this->getAmount());
         $data->addChild('currency_code', $this->getCurrency());
         $data->addChild('success_url', str_replace('&', '&amp;', $this->getReturnUrl()));
@@ -34,6 +33,9 @@ public function getData()
         $su = $data->addChild('su');
         $su->addChild('customer_protection', 1);
 
+        $sender = $data->addChild('sender');
+        $sender->addChild('country_code', $this->getCountry());
+
         return $data;
     }
 
diff --git a/tests/Omnipay/Sofort/Message/AuthorizeRequestTest.php b/tests/Omnipay/Sofort/Message/AuthorizeRequestTest.php
index a06db74..4b9380d 100644
--- a/tests/Omnipay/Sofort/Message/AuthorizeRequestTest.php
+++ b/tests/Omnipay/Sofort/Message/AuthorizeRequestTest.php
@@ -17,6 +17,7 @@ public function testGetData()
             'returnUrl' => 'https://www.example.com/return',
             'cancelUrl' => 'https://www.example.com/cancel',
             'notifyUrl' => 'https://www.example.com/notify',
+            'country' => 'de',
         ));
 
         $data = $request->getData();
@@ -24,7 +25,7 @@ public function testGetData()
         $this->assertInstanceOf('SimpleXMLElement', $data);
         $this->assertSame('10.00', (string) $data->amount);
         $this->assertSame('EUR', (string) $data->currency_code);
-        $this->assertSame('de', (string) $data->language_code);
+        $this->assertSame('de', (string) $data->sender->country_code);
         $this->assertSame('https://www.example.com/return', (string) $data->success_url);
         $this->assertSame('https://www.example.com/cancel', (string) $data->abort_url);
         $this->assertSame('https://www.example.com/notify', (string) $data->notification_urls[0]->notification_url);
@@ -43,6 +44,7 @@ public function testGetDataWithMultilineDescription()
                 'returnUrl' => 'https://www.example.com/return',
                 'cancelUrl' => 'https://www.example.com/cancel',
                 'notifyUrl' => 'https://www.example.com/notify',
+                'country' => 'de',
             ));
 
         $data = $request->getData();
@@ -50,7 +52,7 @@ public function testGetDataWithMultilineDescription()
         $this->assertInstanceOf('SimpleXMLElement', $data);
         $this->assertSame('10.00', (string) $data->amount);
         $this->assertSame('EUR', (string) $data->currency_code);
-        $this->assertSame('de', (string) $data->language_code);
+        $this->assertSame('de', (string) $data->sender->country_code);
         $this->assertSame('https://www.example.com/return', (string) $data->success_url);
         $this->assertSame('https://www.example.com/cancel', (string) $data->abort_url);
         $this->assertSame('https://www.example.com/notify', (string) $data->notification_urls[0]->notification_url);