diff --git a/src/GeoIP2/Webservice/Client.php b/src/GeoIP2/Webservice/Client.php
index 5625de6..f6ec6fb 100644
--- a/src/GeoIP2/Webservice/Client.php
+++ b/src/GeoIP2/Webservice/Client.php
@@ -20,18 +20,20 @@ class Client
     private $userId;
     private $licenseKey;
     private $languages;
-    private $baseUri = 'https://geoip.maxmind.com/geoip/v2.0';
+    private $host;
     private $guzzleClient;
 
     public function __construct(
         $userId,
         $licenseKey,
         $languages = array('en'),
+        $host = 'geoip.maxmind.com',
         $guzzleClient = null
     ) {
         $this->userId = $userId;
         $this->licenseKey = $licenseKey;
         $this->languages = $languages;
+        $this->host = $host;
         // To enable unit testing
         $this->guzzleClient = $guzzleClient;
     }
@@ -56,9 +58,9 @@ class Client
         return $this->responseFor('omni', 'Omni', $ipAddress);
     }
 
-    private function responseFor($path, $class, $ipAddress)
+    private function responseFor($endpoint, $class, $ipAddress)
     {
-        $uri = implode('/', array($this->baseUri, $path, $ipAddress));
+        $uri = implode('/', array($this->baseUri(), $endpoint, $ipAddress));
 
         $client = $this->guzzleClient ?
             $this->guzzleClient : new GuzzleClient();
@@ -177,4 +179,8 @@ class Client
             $uri
         );
     }
+
+    private function baseUri() {
+        return 'https://' . $this->host . '/geoip/v2.0';
+    }
 }
diff --git a/tests/GeoIP2/Test/Webservice/ClientTest.php b/tests/GeoIP2/Test/Webservice/ClientTest.php
index b571e7d..c9b9f1b 100644
--- a/tests/GeoIP2/Test/Webservice/ClientTest.php
+++ b/tests/GeoIP2/Test/Webservice/ClientTest.php
@@ -273,6 +273,7 @@ class ClientTest extends \PHPUnit_Framework_TestCase
             42,
             'abcdef123456',
             array('en'),
+            'geoip.maxmind.com',
             $guzzleClient
         );
         $client->country('1.2.3.4');
@@ -316,6 +317,7 @@ class ClientTest extends \PHPUnit_Framework_TestCase
             42,
             'abcdef123456',
             $languages,
+            'geoip.maxmind.com',
             $guzzleClient
         );