diff --git a/core/modules/user/src/EntityOwnerTrait.php b/core/modules/user/src/EntityOwnerTrait.php
index 916c435269..ad55d0f3dc 100644
--- a/core/modules/user/src/EntityOwnerTrait.php
+++ b/core/modules/user/src/EntityOwnerTrait.php
@@ -81,10 +81,10 @@ public function setOwner(UserInterface $account) {
    * Default value callback for 'owner' base field.
    *
    * @return mixed
-   *   A default value or array of default values.
+   *   A default value for the owner field.
    */
   public static function getDefaultEntityOwner() {
-    return [\Drupal::currentUser()->id()];
+    return \Drupal::currentUser()->id();
   }
 
 }