diff --git a/module/VuFind/src/VuFind/Search/UrlQueryHelper.php b/module/VuFind/src/VuFind/Search/UrlQueryHelper.php
index 03d849835ca06ed16404491f6254acc2fb556be6..cc70b93f9f983f72f98a177348148f910ee96998 100644
--- a/module/VuFind/src/VuFind/Search/UrlQueryHelper.php
+++ b/module/VuFind/src/VuFind/Search/UrlQueryHelper.php
@@ -183,8 +183,7 @@ class UrlQueryHelper
     {
         $newResults = clone($this->results);
         $newResults->getParams()->replaceSearchTerm($from, $to);
-        $myClass = get_class($this);
-        $helper = new $myClass($newResults);
+        $helper = new static($newResults);
         return $helper->getParams();
     }