diff --git a/src/MD_STD_IN.php b/src/MD_STD_IN.php
index 264e41e..272c916 100644
--- a/src/MD_STD_IN.php
+++ b/src/MD_STD_IN.php
@@ -113,7 +113,7 @@ final class MD_STD_IN {
      *
      * @param array<mixed> $inputs Input array.
      *
-     * @return array<integer>
+     * @return list<integer>
      */
     public static function sanitize_id_array(array $inputs):array {