diff --git a/src/wp-includes/comment-template.php b/src/wp-includes/comment-template.php
index d792bffd9c..daa9cc2049 100644
--- a/src/wp-includes/comment-template.php
+++ b/src/wp-includes/comment-template.php
@@ -1893,7 +1893,7 @@ function get_cancel_comment_reply_link( $text = '' ) {
  *
  * @since 2.7.0
  *
- * @param string $text Optional. Text to display for cancel reply link. Default empty.
+ * @param string $text Optional. Text to display for cancel reply link. If empty, text defaults to 'Click here to cancel reply.' Default empty.
  */
 function cancel_comment_reply_link( $text = '' ) {
 	echo get_cancel_comment_reply_link( $text );