diff --git a/src/wp-includes/default-constants.php b/src/wp-includes/default-constants.php
index bf3e31dfb2..94da94d2c3 100644
--- a/src/wp-includes/default-constants.php
+++ b/src/wp-includes/default-constants.php
@@ -12,7 +12,8 @@
  *
  * @since 3.0.0
  *
- * @global int $blog_id
+ * @global int    $blog_id    The current site ID.
+ * @global string $wp_version The WordPress version string.
  */
 function wp_initial_constants() {
 	global $blog_id;