diff --git a/core/misc/tabledrag.js b/core/misc/tabledrag.js
index 70547bb..5692c6b 100644
--- a/core/misc/tabledrag.js
+++ b/core/misc/tabledrag.js
@@ -485,11 +485,11 @@ Drupal.tableDrag.prototype.makeDraggable = function (item) {
 /**
  * Pointer event initiator, creates drag object and information.
  *
- * @param event
+ * @param jQuery.Event event
  *   The event object that trigger the drag.
- * @param self
+ * @param Drupal.tableDrag self
  *   The drag handle.
- * @param item
+ * @param DOM item
  *   The item that that is being dragged.
  */
 Drupal.tableDrag.prototype.dragStart = function (event, self, item) {