diff --git a/core/modules/comment/comment.install b/core/modules/comment/comment.install
index 3c6fa86..82f28ab 100644
--- a/core/modules/comment/comment.install
+++ b/core/modules/comment/comment.install
@@ -134,3 +134,12 @@ function comment_update_8001() {
 function comment_update_8002() {
   // Empty update to cause a cache flush.
 }
+
+/**
+ * Update schema.
+ */
+function comment_update_8003() {
+  $entity_type = \Drupal::entityTypeManager()->getStorage('comment')->getEntityType();
+  \Drupal::service('system.entity_schema_updater')->createTables($entity_type);
+  \Drupal::service('system.entity_schema_updater')->addRevisionField($entity_type);
+}
diff --git a/core/modules/system/src/EntitySchemaUpdater.php b/core/modules/system/src/EntitySchemaUpdater.php
index e69de29..68cfcf1 100644
--- a/core/modules/system/src/EntitySchemaUpdater.php
+++ b/core/modules/system/src/EntitySchemaUpdater.php
@@ -0,0 +1,35 @@
+<?php
+
+namespace Drupal\system;
+
+
+use Drupal\Core\Entity\EntityTypeInterface;
+use Drupal\Core\Entity\Sql\SqlContentEntityStorageSchema;
+use Drupal\Core\Field\BaseFieldDefinition;
+use Drupal\Core\StringTranslation\TranslatableMarkup;
+
+class EntitySchemaUpdater implements EntitySchemaUpdaterInterface {
+
+  /**
+   * {@inheritdoc}
+   */
+  public function createTables(EntityTypeInterface $entity_type) {
+    $entity_manager = \Drupal::entityManager();
+    $entity_type_manager = \Drupal::entityTypeManager();
+    $storage = $entity_type_manager->getStorage($entity_type->id());
+    $database = \Drupal::database();
+    $class = $entity_type_manager->getDefinition($entity_type->id())->getHandlerClass('storage_schema');
+    /** @var SqlContentEntityStorageSchema $storage_schema */
+    $storage_schema = new $class($entity_manager, $entity_type, $storage, $database);
+    $storage_schema->onEntityTypeCreate($entity_type);
+  }
+
+  public function addRevisionField(EntityTypeInterface $entity_type) {
+    $storage_definition = BaseFieldDefinition::create('integer')
+      ->setLabel(new TranslatableMarkup('Revision ID'))
+      ->setReadOnly(TRUE)
+      ->setSetting('unsigned', TRUE);
+    \Drupal::entityDefinitionUpdateManager()
+      ->installFieldStorageDefinition($entity_type->getKey('revision'), $entity_type->id(), $entity_type->id(), $storage_definition);
+  }
+}
\ No newline at end of file
diff --git a/core/modules/system/src/EntitySchemaUpdaterInterface.php b/core/modules/system/src/EntitySchemaUpdaterInterface.php
index e69de29..65f7c23 100644
--- a/core/modules/system/src/EntitySchemaUpdaterInterface.php
+++ b/core/modules/system/src/EntitySchemaUpdaterInterface.php
@@ -0,0 +1,19 @@
+<?php
+
+namespace Drupal\system;
+
+use Drupal\Core\Entity\EntityTypeInterface;
+
+interface EntitySchemaUpdaterInterface {
+
+  /**
+   * @param \Drupal\Core\Entity\EntityTypeInterface $entity_type
+   */
+  public function createTables(EntityTypeInterface $entity_type);
+
+  /**
+   * @param \Drupal\Core\Entity\EntityTypeInterface $entity_type
+   */
+  public function addRevisionField(EntityTypeInterface $entity_type);
+
+}
diff --git a/core/modules/system/system.services.yml b/core/modules/system/system.services.yml
index c70889d..f55984f 100644
--- a/core/modules/system/system.services.yml
+++ b/core/modules/system/system.services.yml
@@ -43,3 +43,5 @@ services:
     arguments: ['@theme_handler', '@cache_tags.invalidator']
     tags:
       - { name: event_subscriber }
+  system.entity_schema_updater:
+    class: Drupal\system\EntitySchemaUpdater