diff --git a/wp-admin/network/site-new.php b/wp-admin/network/site-new.php
index 4b866de66b..e66bd0a301 100644
--- a/wp-admin/network/site-new.php
+++ b/wp-admin/network/site-new.php
@@ -5,6 +5,7 @@
  *
  * @package WordPress
  * @subpackage Administration
+ * @since 3.1.0
  */
 
 /** Load WordPress Administration Bootstrap */