diff --git a/src/wp-includes/blocks/block.php b/src/wp-includes/blocks/block.php
index d51b35d68b..24584be0ab 100644
--- a/src/wp-includes/blocks/block.php
+++ b/src/wp-includes/blocks/block.php
@@ -8,6 +8,8 @@
 /**
  * Renders the `core/block` block on server.
  *
+ * @global WP_Embed $wp_embed
+ * 
  * @param array $attributes The block attributes.
  *
  * @return string Rendered HTML of the referenced block.
diff --git a/src/wp-includes/blocks/calendar.php b/src/wp-includes/blocks/calendar.php
index f1f7967235..6f62839c10 100644
--- a/src/wp-includes/blocks/calendar.php
+++ b/src/wp-includes/blocks/calendar.php
@@ -121,6 +121,8 @@ function block_core_calendar_has_published_posts() {
  * Queries the database for any published post and saves
  * a flag whether any published post exists or not.
  *
+ * @global wpdb $wpdb WordPress database abstraction object.
+ * 
  * @return bool Has any published posts or not.
  */
 function block_core_calendar_update_has_published_posts() {
diff --git a/src/wp-includes/blocks/comments.php b/src/wp-includes/blocks/comments.php
index 48aac15af6..b91fa9591d 100644
--- a/src/wp-includes/blocks/comments.php
+++ b/src/wp-includes/blocks/comments.php
@@ -16,6 +16,8 @@
  * the block is in legacy mode. If not, the HTML generated in the editor is
  * returned instead.
  *
+ * @global WP_Post  $post     Global post object.
+ * 
  * @param array    $attributes Block attributes.
  * @param string   $content    Block default content.
  * @param WP_Block $block      Block instance.