diff --git a/src/wp-includes/ms-functions.php b/src/wp-includes/ms-functions.php
index 3d670188cd..583d4a213c 100644
--- a/src/wp-includes/ms-functions.php
+++ b/src/wp-includes/ms-functions.php
@@ -152,7 +152,7 @@ function get_blog_post( $blog_id, $post_id ) {
 }
 
 /**
- * Adds a user to a blog.
+ * Adds a user to a blog, along with specifying the user's role.
  *
  * Use the {@see 'add_user_to_blog'} action to fire an event when users are added to a blog.
  *
@@ -160,7 +160,7 @@ function get_blog_post( $blog_id, $post_id ) {
  *
  * @param int    $blog_id ID of the blog the user is being added to.
  * @param int    $user_id ID of the user being added.
- * @param string $role    The role you want the user to have
+ * @param string $role    The role you want the user to have.
  * @return true|WP_Error True on success or a WP_Error object if the user doesn't exist
  *                       or could not be added.
  */