diff --git a/packages/block-library/src/latest-posts/index.php b/packages/block-library/src/latest-posts/index.php
index f8fd8ea27bc453..b970f486bb6a1c 100644
--- a/packages/block-library/src/latest-posts/index.php
+++ b/packages/block-library/src/latest-posts/index.php
@@ -33,6 +33,9 @@ function block_core_latest_posts_get_excerpt_length() {
  *
  * @since 5.0.0
  *
+ * @global WP_Post $post                                   Global post object.
+ * @global int     $block_core_latest_posts_excerpt_length Excerpt length set by the Latest Posts core block.
+ *
  * @param array $attributes The block attributes.
  *
  * @return string Returns the post content with latest posts added.