diff --git a/includes/pager.inc b/includes/pager.inc
index 146033f..1ccd5c9 100644
--- a/includes/pager.inc
+++ b/includes/pager.inc
@@ -154,7 +154,7 @@ class PagerDefault extends SelectQueryExtender {
    * Note that no collision detection is done when setting an element ID
    * explicitly, so it is possible for two pagers to end up using the same ID
    * if both are set explicitly.
-   * 
+   *
    * @param $element
    */
   public function element($element) {
@@ -574,13 +574,18 @@ function theme_pager_last($variables) {
  *
  * @param $variables
  *   An associative array containing:
+ *   - text: The link text. Also used to figure out the title attribute of the
+ *     link, if it is not provided in $variables['attributes']['title']; in
+ *     this case, $variables['text'] must be one of the standard pager link
+ *     text strings that would be generated by the pager theme functions, such
+ *     as a number or t('<< first').
  *   - page_new: The first result to display on the linked page.
  *   - element: An optional integer to distinguish between multiple pagers on
  *     one page.
  *   - parameters: An associative array of query string parameters to append to
  *     the pager link.
- *   - attributes: An associative array of HTML attributes to apply to a pager
- *     anchor tag.
+ *   - attributes: An associative array of HTML attributes to apply to the
+ *     pager link.
  *
  * @ingroup themeable
  */