diff --git a/core/modules/jsonapi/src/Query/Sort.php b/core/modules/jsonapi/src/Query/Sort.php
index 3f01638e916..df85e06a863 100644
--- a/core/modules/jsonapi/src/Query/Sort.php
+++ b/core/modules/jsonapi/src/Query/Sort.php
@@ -47,7 +47,7 @@ class Sort {
   /**
    * The fields on which to sort.
    *
-   * @var string
+   * @var array
    */
   protected $fields;