diff --git a/core/lib/Drupal/Core/Entity/ContentEntityDatabaseStorage.php b/core/lib/Drupal/Core/Entity/ContentEntityDatabaseStorage.php
index 0ade256..c6ef9f6 100644
--- a/core/lib/Drupal/Core/Entity/ContentEntityDatabaseStorage.php
+++ b/core/lib/Drupal/Core/Entity/ContentEntityDatabaseStorage.php
@@ -323,7 +323,7 @@ public function getTableMapping() {
         $this->tableMapping->setFieldNames($this->revisionTable, $revision_base_fields);
 
         $revision_data_key_fields = array($this->idKey, $this->revisionKey, $this->langcodeKey);
-        $revision_data_fields = array_diff($revisionable_fields, $revision_metadata_fields);
+        $revision_data_fields = array_diff($revisionable_fields, $revision_metadata_fields, array($this->langcodeKey));
         $this->tableMapping
           ->setFieldNames($this->revisionDataTable, array_merge($revision_data_key_fields, $revision_data_fields))
           // Add the denormalized 'default_langcode' field to the mapping. Its
@@ -1166,7 +1166,7 @@ protected function doDeleteFieldItemsRevision(EntityInterface $entity) {
    * {@inheritdoc}
    */
   public function onFieldStorageDefinitionCreate(FieldStorageDefinitionInterface $storage_definition) {
-    // If we are adding a field shared in a shared table we need to recompute
+    // If we are adding a field stored in a shared table we need to recompute
     // the table mapping.
     if ($this->getTableMapping()->allowsSharedTableStorage($storage_definition)) {
       $this->tableMapping = NULL;