diff --git a/mod/assignment/lib.php b/mod/assignment/lib.php
index 7a5ab20ee16..e3b1275025b 100644
--- a/mod/assignment/lib.php
+++ b/mod/assignment/lib.php
@@ -3943,16 +3943,16 @@ function assignment_get_file_areas($course, $cm, $context) {
 /**
  * File browsing support for assignment module.
  *
- * @param object $browser
- * @param object $areas
- * @param object $course
- * @param object $cm
- * @param object $context
+ * @param file_browser $browser
+ * @param array $areas
+ * @param stdClass $course
+ * @param cm_info $cm
+ * @param context $context
  * @param string $filearea
  * @param int $itemid
  * @param string $filepath
  * @param string $filename
- * @return object file_info instance or null if not found
+ * @return file_info_stored file_info_stored instance or null if not found
  */
 function assignment_get_file_info($browser, $areas, $course, $cm, $context, $filearea, $itemid, $filepath, $filename) {
     global $CFG, $DB, $USER;