diff --git a/src/Revision/EntityRevisionLogInterface.php b/src/Revision/EntityRevisionLogInterface.php
index 2fc183f81d0c684ecde151fa185bb08e74a03e19..f02ba92f8ef0d6fc0cd1ad9b64e7f98060ed4fbe 100644
--- a/src/Revision/EntityRevisionLogInterface.php
+++ b/src/Revision/EntityRevisionLogInterface.php
@@ -7,6 +7,8 @@
 
 namespace Drupal\entity\Revision;
 
+use Drupal\user\UserInterface;
+
 /**
  * Defines an entity type with create time/author/log information for revisions.
  */
@@ -48,7 +50,7 @@ interface EntityRevisionLogInterface {
    *
    * @return $this
    */
-  public function setRevisionUser($account);
+  public function setRevisionUser(UserInterface $account);
 
   /**
    * Gets the entity revision author ID.