diff --git a/x-pack/plugin/esql/src/test/java/org/elasticsearch/xpack/esql/expression/function/fulltext/QueryStringTests.java b/x-pack/plugin/esql/src/test/java/org/elasticsearch/xpack/esql/expression/function/fulltext/QueryStringTests.java
index 958e3c81ff04d..131d9e2d6157e 100644
--- a/x-pack/plugin/esql/src/test/java/org/elasticsearch/xpack/esql/expression/function/fulltext/QueryStringTests.java
+++ b/x-pack/plugin/esql/src/test/java/org/elasticsearch/xpack/esql/expression/function/fulltext/QueryStringTests.java
@@ -79,7 +79,7 @@ protected Expression build(Source source, List<Expression> args) {
         // We need to add the QueryBuilder to the match expression, as it is used to implement equals() and hashCode() and
         // thus test the serialization methods. But we can only do this if the parameters make sense .
         if (args.get(0).foldable()) {
-            QueryBuilder queryBuilder = TRANSLATOR_HANDLER.asQuery(qstr).asBuilder();
+            QueryBuilder queryBuilder = TRANSLATOR_HANDLER.asQuery(qstr).toQueryBuilder();
             qstr.replaceQueryBuilder(queryBuilder);
         }
         return qstr;