diff --git a/src/BulkRetrieverInterface.php b/src/BulkRetrieverInterface.php
index 3a60194..8b3277b 100644
--- a/src/BulkRetrieverInterface.php
+++ b/src/BulkRetrieverInterface.php
@@ -9,7 +9,7 @@ interface BulkRetrieverInterface
    * Retrieve all.
    *
    * @return array
-   *   An array of strings keyed by id.
+   *   An array of ids.
    */
     public function retrieveAll(): array;
 }