diff --git a/core/includes/config.inc b/core/includes/config.inc
index d0f1d7b..f988628 100644
--- a/core/includes/config.inc
+++ b/core/includes/config.inc
@@ -81,8 +81,15 @@ function ($value) use ($name) {
         $new_config->setData($data);
       }
       if ($entity_type = config_get_entity_type_by_name($name)) {
-        $entity_manager
-          ->getStorageController($entity_type)
+        $entity_storage = $entity_manager->getStorageController($entity_type);
+        // The exported default configuration could contain a UUID from the
+        // originally originating site. Ensure that a new UUID is created for
+        // every newly created configuration entity, so that it is universally
+        // unique.
+        $entity_info = $entity_storage->entityInfo();
+        $new_config->set($entity_info['entity_keys']['uuid'], NULL);
+
+        $entity_storage
           ->create($new_config->get())
           ->save();
       }