diff --git a/src/ServerRequestInterface.php b/src/ServerRequestInterface.php
index 0251234..af8464f 100644
--- a/src/ServerRequestInterface.php
+++ b/src/ServerRequestInterface.php
@@ -131,7 +131,7 @@ public function withQueryParams(array $query);
      * These values MAY be prepared from $_FILES or the message body during
      * instantiation, or MAY be injected via withUploadedFiles().
      *
-     * @return array An array tree of UploadedFileInterface instances; an empty
+     * @return UploadedFileInterface[] An array tree of UploadedFileInterface instances; an empty
      *     array MUST be returned if no data is present.
      */
     public function getUploadedFiles();