diff --git a/core/modules/node/node.api.php b/core/modules/node/node.api.php
index 6fb311c..4949f3e 100644
--- a/core/modules/node/node.api.php
+++ b/core/modules/node/node.api.php
@@ -204,7 +204,7 @@ function hook_node_access_records(\Drupal\node\NodeInterface $node) {
  *
  * A module may deny all access to a node by setting $grants to an empty array.
  *
- * @param $grants
+ * @param array $grants
  *   The $grants array returned by hook_node_access_records().
  * @param \Drupal\node\NodeInterface $node
  *   The node for which the grants were acquired.
@@ -354,7 +354,7 @@ function hook_node_access(\Drupal\node\NodeInterface $node, $op, \Drupal\Core\Se
  *
  * @param \Drupal\node\NodeInterface $node
  *   The node being displayed in a search result.
- * @param $langcode
+ * @param object $langcode
  *   Language code of result being displayed.
  *
  * @return array
@@ -381,7 +381,7 @@ function hook_node_search_result(\Drupal\node\NodeInterface $node, $langcode) {
  *
  * @param \Drupal\node\NodeInterface $node
  *   The node being indexed.
- * @param $langcode
+ * @param object $langcode
  *   Language code of the variant of the node being indexed.
  *
  * @return string
@@ -414,9 +414,9 @@ function hook_node_update_index(\Drupal\node\NodeInterface $node, $langcode) {
  *
  * @param \Drupal\node\NodeInterface $node
  *   The node being validated.
- * @param $form
+ * @param array $form
  *   The form being used to edit the node.
- * @param $form_state
+ * @param \Drupal\Core\Form\FormStateInterface $form_state
  *   The current state of the form.
  *
  * @ingroup entity_crud
@@ -441,9 +441,9 @@ function hook_node_validate(\Drupal\node\NodeInterface $node, $form, \Drupal\Cor
  *
  * @param \Drupal\node\NodeInterface $node
  *   The node entity being updated in response to a form submission.
- * @param $form
+ * @param array $form
  *   The form being used to edit the node.
- * @param $form_state
+ * @param \Drupal\Core\Form\FormStateInterface $form_state
  *   The current state of the form.
  *
  * @ingroup entity_crud