src/Normalizer/EntityNormalizer.php | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/src/Normalizer/EntityNormalizer.php b/src/Normalizer/EntityNormalizer.php
index 844a256..26ba08c 100644
--- a/src/Normalizer/EntityNormalizer.php
+++ b/src/Normalizer/EntityNormalizer.php
@@ -206,14 +206,20 @@ class EntityNormalizer extends NormalizerBase implements DenormalizerInterface {
       $fields = $entity->getFields();
     }
 
-    // JSON API resource identifier objects are sufficient to identify entities,
-    // exposing an entity's ID (which is not a UUID) is bad, and exposing its
-    // bundle is useless (it's already part of the resource type name).
+    // JSON API resource identifier objects are sufficient to identify entities.
+    // By exposing all fields as attributes, we expose unwanted, confusing or
+    // duplicate information:
+    // - exposing an entity's ID (which is not a UUID) is bad
+    // - exposing its bundle is useless (it's already part of the resource type
+    //   name)
+    // - exposing its UUID as an attribute is useless (it's already part of the
+    //   mandatory "id" attribute in JSON API)
     // @see http://jsonapi.org/format/#document-resource-identifier-objects
     $id_field_name = $entity->getEntityType()->getKey('id');
     unset($fields[$id_field_name]);
     $bundle_field_name = $entity->getEntityType()->getKey('bundle');
     unset($fields[$bundle_field_name]);
+    unset($fields['uuid']);
 
     // Filter the array based on the field names.
     $enabled_field_names = array_filter(