diff --git a/core/Tracker.php b/core/Tracker.php
index 0761eafd46a..abf396cbfd9 100644
--- a/core/Tracker.php
+++ b/core/Tracker.php
@@ -787,6 +787,8 @@ public static function setTestEnvironment($args = null, $requestMethod = null)
         // Disable provider plugin, because it is so slow to do many reverse ip lookups
         self::setPluginsNotToLoad($pluginsDisabled);
 
+        // we load 'DevicesDetection' in tests only (disabled by default)
+        self::setPluginsToLoad(array('DevicesDetection'));
     }
 
     /**