diff --git a/core/lib/Drupal/Core/Entity/EntityListBuilder.php b/core/lib/Drupal/Core/Entity/EntityListBuilder.php
index 012e062224..4a06f3cfd3 100644
--- a/core/lib/Drupal/Core/Entity/EntityListBuilder.php
+++ b/core/lib/Drupal/Core/Entity/EntityListBuilder.php
@@ -286,7 +286,7 @@ protected function getEmptyText() {
 
     // Append the add link if it exists and is accessible.
     $add_link = $this->getAddLink();
-    if (!empty($add_link)) {
+    if ($add_link) {
       $empty_text = $empty_text . ' ' . (string) $add_link;
     }
 
@@ -308,12 +308,12 @@ protected function getAddLinkText() {
   /**
    * Returns a link to add a new entity.
    *
-   * @return string|false
-   *   The HTML link or FALSE if no link is available.
+   * @return string|null
+   *   The HTML link or NULL if no link is available.
    */
   protected function getAddLink() {
     if (!$this->accessControlHandler->createAccess()) {
-      return FALSE;
+      return NULL;
     }
 
     if ($this->entityType->hasLinkTemplate('add-page')) {
@@ -328,8 +328,6 @@ protected function getAddLink() {
         Url::fromUri('internal:' . $this->entityType->getLinkTemplate('add-form'))
       );
     }
-
-    return FALSE;
   }
 
 }
diff --git a/core/modules/aggregator/src/Entity/Feed.php b/core/modules/aggregator/src/Entity/Feed.php
index d52da4de4a..7379925e72 100644
--- a/core/modules/aggregator/src/Entity/Feed.php
+++ b/core/modules/aggregator/src/Entity/Feed.php
@@ -38,7 +38,7 @@
  *   },
  *   links = {
  *     "canonical" = "/aggregator/sources/{aggregator_feed}",
- *     "add-form": "/aggregator/sources/add",
+ *     "add-form" = "/aggregator/sources/add",
  *     "edit-form" = "/aggregator/sources/{aggregator_feed}/configure",
  *     "delete-form" = "/aggregator/sources/{aggregator_feed}/delete",
  *   },
diff --git a/core/modules/node/src/Entity/Node.php b/core/modules/node/src/Entity/Node.php
index d782e7d329..ac3f7fdcfb 100644
--- a/core/modules/node/src/Entity/Node.php
+++ b/core/modules/node/src/Entity/Node.php
@@ -71,8 +71,8 @@
  *   permission_granularity = "bundle",
  *   links = {
  *     "canonical" = "/node/{node}",
- *     "add-page": "/node/add",
- *     "add-form": "/node/add/{node_type}",
+ *     "add-page" = "/node/add",
+ *     "add-form" = "/node/add/{node_type}",
  *     "delete-form" = "/node/{node}/delete",
  *     "delete-multiple-form" = "/admin/content/node/delete",
  *     "edit-form" = "/node/{node}/edit",