diff -u b/core/lib/Drupal/Core/StreamWrapper/ProfileStream.php b/core/lib/Drupal/Core/StreamWrapper/ProfileStream.php
--- b/core/lib/Drupal/Core/StreamWrapper/ProfileStream.php
+++ b/core/lib/Drupal/Core/StreamWrapper/ProfileStream.php
@@ -19,7 +19,7 @@
    * {@inheritdoc}
    */
   protected function getOwnerName() {
-    return drupal_get_profile();
+    return \Drupal::installProfile();
   }
 
   /**