diff --git a/core/modules/search/src/SearchQuery.php b/core/modules/search/src/SearchQuery.php
index 6e342ca202c168c5520345d85ffb89aca7bac882..bba7fe9c0379ba72ad234c74b2789c3b3b9d21d9 100644
--- a/core/modules/search/src/SearchQuery.php
+++ b/core/modules/search/src/SearchQuery.php
@@ -520,7 +520,7 @@ public function addScore($score, $arguments = [], $multiply = FALSE) {
     // search expression. So, use string replacement to change this to a
     // calculated query expression, counting the number of occurrences so
     // in the execute() method we can add arguments.
-    while (($pos = strpos($score, 'i.relevance')) !== FALSE) {
+    while (strpos($score, 'i.relevance') !== FALSE) {
       $pieces = explode('i.relevance', $score, 2);
       $score = implode('((ROUND(:normalization_' . $this->relevance_count . ', 4)) * i.score * t.count)', $pieces);
       $this->relevance_count++;