diff --git a/tests/PHPUnit/proxy/piwik.php b/tests/PHPUnit/proxy/piwik.php
index 5a3f82df0a90a9adebef3d3dcc4d304d711fcb31..bae1f90a72ae092405e2fdbb53a5abeb7fe47456 100755
--- a/tests/PHPUnit/proxy/piwik.php
+++ b/tests/PHPUnit/proxy/piwik.php
@@ -22,6 +22,15 @@ require realpath(dirname(__FILE__)) . "/includes.php";
 ob_start();
 
 Config::getInstance()->setTestEnvironment();
+
+try {
+    $trackerPlugins = Config::getInstance()->Plugins_Tracker['Plugins_Tracker'];
+}catch(Exception $e) {
+    $trackerPlugins = array();
+}
+$trackerPlugins[] = 'DevicesDetection';
+Config::getInstance()->Plugins_Tracker['Plugins_Tracker'] = $trackerPlugins;
+
 GeoIp::$geoIPDatabaseDir = 'tests/lib/geoip-files';
 
 Tracker::setTestEnvironment();