diff --git a/src/wp-includes/blocks.php b/src/wp-includes/blocks.php
index 694f60a9ef248..9ad285aea6334 100644
--- a/src/wp-includes/blocks.php
+++ b/src/wp-includes/blocks.php
@@ -775,7 +775,8 @@ function get_hooked_blocks() {
  * @param array  $hooked_block      The hooked block, represented as a parsed block array.
  * @param string $hooked_block_type The type of the hooked block. This could be different from
  *                                  $hooked_block['blockName'], as a filter might've modified the latter.
- * @param array  $anchor_block      The anchor block. Passed by reference.
+ * @param array  $anchor_block      The anchor block, represented as a parsed block array.
+ *                                  Passed by reference.
  * @return string The markup for the given hooked block, or an empty string if the block is ignored.
  */
 function get_hooked_block_markup( $hooked_block, $hooked_block_type, &$anchor_block ) {