diff --git a/tempest/api/orchestration/stacks/test_update.py b/tempest/api/orchestration/stacks/test_update.py
index 1bda0b4..a9a43b6 100644
--- a/tempest/api/orchestration/stacks/test_update.py
+++ b/tempest/api/orchestration/stacks/test_update.py
@@ -14,7 +14,7 @@
 
 from tempest.api.orchestration import base
 from tempest.common.utils import data_utils
-from tempest.test import attr
+from tempest import test
 
 
 LOG = logging.getLogger(__name__)
@@ -47,7 +47,7 @@
         self.assertEqual('202', resp[0]['status'])
         self.client.wait_for_stack_status(stack_identifier, 'UPDATE_COMPLETE')
 
-    @attr(type='gate')
+    @test.attr(type='gate')
     def test_stack_update_nochange(self):
         stack_name = data_utils.rand_name('heat')
         stack_identifier = self.create_stack(stack_name, self.template)
@@ -61,7 +61,8 @@
         self.assertEqual(expected_resources,
                          self.list_resources(stack_identifier))
 
-    @attr(type='gate')
+    @test.attr(type='gate')
+    @test.skip_because(bug='1308682')
     def test_stack_update_add_remove(self):
         stack_name = data_utils.rand_name('heat')
         stack_identifier = self.create_stack(stack_name, self.template)
diff --git a/tempest/api_schema/compute/v2/instance_usage_audit_logs.py b/tempest/api_schema/compute/v2/instance_usage_audit_logs.py
index c1509b4..658f574 100644
--- a/tempest/api_schema/compute/v2/instance_usage_audit_logs.py
+++ b/tempest/api_schema/compute/v2/instance_usage_audit_logs.py
@@ -46,3 +46,14 @@
         'required': ['instance_usage_audit_log']
     }
 }
+
+list_instance_usage_audit_log = {
+    'status_code': [200],
+    'response_body': {
+        'type': 'object',
+        'properties': {
+            'instance_usage_audit_logs': common_instance_usage_audit_log
+        },
+        'required': ['instance_usage_audit_logs']
+    }
+}
diff --git a/tempest/services/compute/json/instance_usage_audit_log_client.py b/tempest/services/compute/json/instance_usage_audit_log_client.py
index 4088be9..4700ca7 100644
--- a/tempest/services/compute/json/instance_usage_audit_log_client.py
+++ b/tempest/services/compute/json/instance_usage_audit_log_client.py
@@ -34,6 +34,8 @@
         url = 'os-instance_usage_audit_log'
         resp, body = self.get(url)
         body = json.loads(body)
+        self.validate_response(schema.list_instance_usage_audit_log,
+                               resp, body)
         return resp, body["instance_usage_audit_logs"]
 
     def get_instance_usage_audit_log(self, time_before):