diff -u b/core/modules/contact/src/Plugin/Block/ContactNavigationBlock.php b/core/modules/contact/src/Plugin/Block/ContactNavigationBlock.php
--- b/core/modules/contact/src/Plugin/Block/ContactNavigationBlock.php
+++ b/core/modules/contact/src/Plugin/Block/ContactNavigationBlock.php
@@ -140,7 +140,7 @@
     $categories = $this->configuration['categories'];
     $rows = array();
     $min_weight = 0;
-    /** @var $category \Drupal\contact\CategoryInterface */
+    /** @var \Drupal\contact\CategoryInterface $category */
     foreach ($this->storage->loadMultiple() as $id => $category) {
       // Do not list personal category.
       if ($id == 'personal') {
@@ -226,7 +226,7 @@
    */
   public function build() {
     $links = array();
-    /** @var $category \Drupal\contact\CategoryInterface */
+    /** @var \Drupal\contact\CategoryInterface $category */
     foreach ($this->storage->loadMultiple(array_keys($this->configuration['categories'])) as $id => $category) {
       $links[$id] = array(
         '#type' => 'link',