diff --git a/modules/shortcut/shortcut.module b/modules/shortcut/shortcut.module
index 2f6db0a..221d661 100644
--- a/modules/shortcut/shortcut.module
+++ b/modules/shortcut/shortcut.module
@@ -331,9 +331,10 @@ function shortcut_set_load($set_name) {
  * @param $shortcut_set
  *   An object containing the following properties:
  *   - 'title': The title of the shortcut set.
- *   - 'set_name': (optional) The internal name of the shortcut set. If
- *     omitted, a new shortcut set will be created, and the 'set_name' property
- *     will be added to the passed-in object.
+ *   - 'set_name': (optional) The internal name of an existing shortcut set to
+ *     update. Omit this to create a new shortcut set, in which case the
+ *     'set_name' property will be automatically generated and added to the
+ *     passed-in object.
  *   - 'links': (optional) An array of menu links to save for the shortcut set.
  *     Each link is an array containing at least the following keys (which will
  *     be expanded to fill in other default values after the shortcut set is