diff --git a/Search.php b/Search.php
index 0c9b7d5d3494547df79a906e95d8b15f38a3e5e0..ce2240eaaead674629df671801f39782af05cb3b 100644
--- a/Search.php
+++ b/Search.php
@@ -27,8 +27,6 @@ use Symfony\Component\Serializer\Normalizer\CustomNormalizer;
  */
 class Search
 {
-    const SCROLL_DURATION = '5m';
-
     /**
      * @var int
      */
@@ -587,7 +585,7 @@ class Search
      *
      * @return Search
      */
-    public function setScroll($duration = self::SCROLL_DURATION)
+    public function setScroll($duration = '5m')
     {
         $this->scroll = $duration;