diff --git a/core/lib/Drupal/Core/Entity/ContentEntityStorageInterface.php b/core/lib/Drupal/Core/Entity/ContentEntityStorageInterface.php
index eb979c7..9f0b725 100644
--- a/core/lib/Drupal/Core/Entity/ContentEntityStorageInterface.php
+++ b/core/lib/Drupal/Core/Entity/ContentEntityStorageInterface.php
@@ -5,7 +5,7 @@
 /**
  * A storage that supports content entity types.
  */
-interface ContentEntityStorageInterface extends EntityStorageInterface {
+interface ContentEntityStorageInterface extends EntityStorageInterface, RevisionableEntityStorageInterface {
 
   /**
    * Constructs a new entity translation object, without permanently saving it.
diff --git a/core/lib/Drupal/Core/Entity/EntityStorageInterface.php b/core/lib/Drupal/Core/Entity/EntityStorageInterface.php
index 9f50674..c6264b4 100644
--- a/core/lib/Drupal/Core/Entity/EntityStorageInterface.php
+++ b/core/lib/Drupal/Core/Entity/EntityStorageInterface.php
@@ -72,27 +72,6 @@ public function load($id);
   public function loadUnchanged($id);
 
   /**
-   * Load a specific entity revision.
-   *
-   * @param int|string $revision_id
-   *   The revision id.
-   *
-   * @return \Drupal\Core\Entity\EntityInterface|null
-   *   The specified entity revision or NULL if not found.
-   */
-  public function loadRevision($revision_id);
-
-  /**
-   * Delete a specific entity revision.
-   *
-   * A revision can only be deleted if it's not the currently active one.
-   *
-   * @param int $revision_id
-   *   The revision id.
-   */
-  public function deleteRevision($revision_id);
-
-  /**
    * Load entities by their property values.
    *
    * @param array $values
diff --git a/core/lib/Drupal/Core/Entity/RevisionableEntityStorageInterface.php b/core/lib/Drupal/Core/Entity/RevisionableEntityStorageInterface.php
new file mode 100644
index 0000000..10ecdc0
--- /dev/null
+++ b/core/lib/Drupal/Core/Entity/RevisionableEntityStorageInterface.php
@@ -0,0 +1,31 @@
+<?php
+
+namespace Drupal\Core\Entity;
+
+/**
+ * A storage that supports revisionable entity types.
+ */
+interface RevisionableEntityStorageInterface {
+
+  /**
+   * Loads a specific entity revision.
+   *
+   * @param int $revision_id
+   *   The revision ID.
+   *
+   * @return \Drupal\Core\Entity\EntityInterface|null
+   *   The specified entity revision or NULL if not found.
+   */
+  public function loadRevision($revision_id);
+
+  /**
+   * Deletes a specific entity revision.
+   *
+   * A revision can only be deleted if it's not the currently active one.
+   *
+   * @param int $revision_id
+   *   The revision id.
+   */
+  public function deleteRevision($revision_id);
+
+}