diff --git a/core/modules/book/config/node.type.book.yml b/core/modules/book/config/node.type.book.yml
index 7ec1e60..426778d 100644
--- a/core/modules/book/config/node.type.book.yml
+++ b/core/modules/book/config/node.type.book.yml
@@ -1,4 +1,5 @@
 type: book
+uuid: c5ca890d-7db7-4c45-bf0f-0a12430923ff
 name: 'Book page'
 description: '<em>Books</em> have a built-in hierarchical navigation. Use for handbooks or tutorials.'
 help: ''
diff --git a/core/modules/forum/config/node.type.forum.yml b/core/modules/forum/config/node.type.forum.yml
index 1349dda..7ffb0e7 100644
--- a/core/modules/forum/config/node.type.forum.yml
+++ b/core/modules/forum/config/node.type.forum.yml
@@ -1,4 +1,5 @@
 type: forum
+uuid: c14b392d-0889-46bd-889e-a239e8b6cd89
 name: 'Forum topic'
 description: 'A <em>forum topic</em> starts a new discussion thread within a forum.'
 help: ''
diff --git a/core/modules/node/lib/Drupal/node/NodeTypeInterface.php b/core/modules/node/lib/Drupal/node/NodeTypeInterface.php
index b0f7579..691713b 100644
--- a/core/modules/node/lib/Drupal/node/NodeTypeInterface.php
+++ b/core/modules/node/lib/Drupal/node/NodeTypeInterface.php
@@ -29,7 +29,7 @@ public function getModuleSettings($module);
   /**
    * Returns a locked state of the type.
    *
-   * @return string|False
+   * @return string|false
    *   The module name that locks the type or FALSE.
    */
   public function isLocked();
diff --git a/core/modules/node/node.install b/core/modules/node/node.install
index 1ad54e8..d16b875 100644
--- a/core/modules/node/node.install
+++ b/core/modules/node/node.install
@@ -1105,8 +1105,8 @@ function node_update_8020() {
       update_variable_del($name);
     }
     $config->save();
-    // Convert 'base' property to state. Note than module could be disabled at
-    // this time so just preserving the relation.
+    // Convert the 'base' property to state. Note that we could have disabled
+    // modules at this time but we still need to preserve the relation.
     if ($node_type['base'] !== 'node_content') {
       $locked[$id] = $node_type['base'];
     }
diff --git a/core/modules/node/tests/modules/node_test_config/config/node.type.default.yml b/core/modules/node/tests/modules/node_test_config/config/node.type.default.yml
index d960aaf..1e17673 100644
--- a/core/modules/node/tests/modules/node_test_config/config/node.type.default.yml
+++ b/core/modules/node/tests/modules/node_test_config/config/node.type.default.yml
@@ -1,4 +1,5 @@
 type: default
+uuid: ca226632-3186-42a2-8440-a526f20840af
 name: Default
 description: 'Default description.'
 help: ''
diff --git a/core/modules/node/tests/modules/node_test_config/staging/node.type.import.yml b/core/modules/node/tests/modules/node_test_config/staging/node.type.import.yml
index 25552b0..f2a4f4a 100644
--- a/core/modules/node/tests/modules/node_test_config/staging/node.type.import.yml
+++ b/core/modules/node/tests/modules/node_test_config/staging/node.type.import.yml
@@ -1,4 +1,5 @@
 type: import
+uuid: 1a720d40-7bcd-41e3-ae4d-08d1cad4ac2a
 name: Import
 description: 'Import description.'
 help: ''
diff --git a/core/profiles/standard/config/node.type.article.yml b/core/profiles/standard/config/node.type.article.yml
index 4918cfb..4bb97a4 100644
--- a/core/profiles/standard/config/node.type.article.yml
+++ b/core/profiles/standard/config/node.type.article.yml
@@ -1,4 +1,5 @@
 type: article
+uuid: 38fcdfbf-92a0-43d3-af30-8395cba668d4
 name: Article
 description: 'Use <em>articles</em> for time-sensitive content like news, press releases or blog posts.'
 help: ''
diff --git a/core/profiles/standard/config/node.type.page.yml b/core/profiles/standard/config/node.type.page.yml
index e0d4f79..987f75c 100644
--- a/core/profiles/standard/config/node.type.page.yml
+++ b/core/profiles/standard/config/node.type.page.yml
@@ -1,4 +1,5 @@
 type: page
+uuid: f77b56af-2b34-4a2f-b7e9-2dcadfdc80d0
 name: 'Basic page'
 description: 'Use <em>basic pages</em> for your static content, such as an ''About us'' page.'
 help: ''