diff --git a/kinto/tests/support.py b/kinto/tests/support.py
index 0e8220e859..4dd323eb38 100644
--- a/kinto/tests/support.py
+++ b/kinto/tests/support.py
@@ -10,8 +10,8 @@
 from kinto import DEFAULT_SETTINGS
 
 
-MINIMALIST_BUCKET = {'data': dict()}
-MINIMALIST_COLLECTION = {'data': dict()}
+MINIMALIST_BUCKET = {}
+MINIMALIST_COLLECTION = {}
 MINIMALIST_GROUP = {'data': dict(members=['fxa:user'])}
 MINIMALIST_RECORD = {'data': dict(name="Hulled Barley",
                                   type="Whole Grain")}
diff --git a/kinto/tests/test_views_buckets.py b/kinto/tests/test_views_buckets.py
index 802edd05e4..2f3ad18de3 100644
--- a/kinto/tests/test_views_buckets.py
+++ b/kinto/tests/test_views_buckets.py
@@ -12,16 +12,14 @@ class BucketViewTest(BaseWebTest, unittest.TestCase):
 
     def setUp(self):
         super(BucketViewTest, self).setUp()
-        bucket = MINIMALIST_BUCKET.copy()
         resp = self.app.put_json(self.record_url,
-                                 bucket,
+                                 MINIMALIST_BUCKET,
                                  headers=self.headers)
         self.record = resp.json['data']
 
     def test_buckets_are_global_to_every_users(self):
         self.app.patch_json(self.record_url,
-                            {'data': {},
-                             'permissions': {'read': [Authenticated]}},
+                            {'permissions': {'read': [Authenticated]}},
                             headers=self.headers)
         self.app.get(self.record_url, headers=get_user_headers('alice'))
 
diff --git a/kinto/tests/test_views_groups.py b/kinto/tests/test_views_groups.py
index 30f88f0215..2afe4fa776 100644
--- a/kinto/tests/test_views_groups.py
+++ b/kinto/tests/test_views_groups.py
@@ -161,7 +161,14 @@ def setUp(self):
 
     def test_groups_must_have_members_attribute(self):
         invalid = {}
-        self.app.put_json(self.group_url,
-                          invalid,
-                          headers=self.headers,
-                          status=400)
+        resp = self.app.put_json(self.group_url,
+                                 invalid,
+                                 headers=self.headers,
+                                 status=400)
+        self.assertEqual(resp.json['message'],
+                         "data is missing")
+        self.assertDictEqual(resp.json['details'][0], {
+            "description": "data is missing",
+            "location": "body",
+            "name": "data"
+        })
diff --git a/loadtests/loadtest/tutorial.py b/loadtests/loadtest/tutorial.py
index f897f62b74..2ec9df75f2 100644
--- a/loadtests/loadtest/tutorial.py
+++ b/loadtests/loadtest/tutorial.py
@@ -139,21 +139,21 @@ def play_user_shared_bucket_tutorial(self):
 
         # Create a new bucket and check for permissions
         resp = self.session.put(
-            self.bucket_url(bucket_id),
-            data=json.dumps({'data': {}}))
+            self.bucket_url(bucket_id))
         self.incr_counter("status-%s" % resp.status_code)
         # We should always have a 201 here. See mozilla-services/cliquet#367
         # if resp.status_code == 200:
         #     import pdb; pdb.set_trace()
         # self.assertEqual(resp.status_code, 201)
         record = resp.json()
+        print record
         self.assertIn('write', record['permissions'])
 
         # Create a new collection and check for permissions
         permissions = {"record:create": ['system.Authenticated']}
         resp = self.session.put(
             re.sub('/records$', '', collection_url),
-            data=json.dumps({'data': {}, 'permissions': permissions}))
+            data=json.dumps({'permissions': permissions}))
         self.incr_counter("status-%s" % resp.status_code)
         # We should always have a 201 here. See mozilla-services/cliquet#367
         # if resp.status_code == 200:
@@ -223,7 +223,7 @@ def play_user_shared_bucket_tutorial(self):
         permissions = {"group:create": ['system.Authenticated']}
         resp = self.session.put(
             self.bucket_url(bucket_id),
-            data=json.dumps({'data': {}, 'permissions': permissions}))
+            data=json.dumps({'permissions': permissions}))
         self.incr_counter("status-%s" % resp.status_code)
         self.assertEqual(resp.status_code, 200)
         record = resp.json()