diff --git a/designate_tempest_plugin/config.py b/designate_tempest_plugin/config.py
index 2144eb1..9b86945 100644
--- a/designate_tempest_plugin/config.py
+++ b/designate_tempest_plugin/config.py
@@ -42,7 +42,7 @@
                help="Timeout in seconds to wait for an resource to build."),
     cfg.IntOpt('min_ttl',
                default=0,
-               help="The minimum value to respect when generating ttls"),
+               help="The minimum value to respect when generating ttl"),
     cfg.ListOpt('nameservers',
                 default=[],
                 help="The nameservers to check for change going live"),
diff --git a/designate_tempest_plugin/tests/api/v2/test_zones.py b/designate_tempest_plugin/tests/api/v2/test_zones.py
index 94cfc3d..d971790 100644
--- a/designate_tempest_plugin/tests/api/v2/test_zones.py
+++ b/designate_tempest_plugin/tests/api/v2/test_zones.py
@@ -732,10 +732,10 @@
 
     @decorators.idempotent_id('551853c0-8593-11eb-8c8a-74e5f9e2a801')
     def test_no_valid_ttl(self):
-        no_valid_tls = ['zahlabut', -60000,
+        no_valid_ttl = ['zahlabut', -60000,
                         2147483647 + 10]  # Max valid TTL is 2147483647
 
-        for ttl in no_valid_tls:
+        for ttl in no_valid_ttl:
             LOG.info(
                 'Trying to create a zone using: {} as TTL'
                 ' value: '.format(ttl))
@@ -743,6 +743,13 @@
                 lib_exc.BadRequest, 'invalid_object', 400,
                 self.zones_client.create_zone, ttl=ttl)
 
+    @decorators.idempotent_id('c4d4b92a-86e3-11ee-965f-201e8823901f')
+    def test_not_existing_project_id(self):
+        LOG.info('Trying to create a zone using not existing project_id')
+        self.assertRaises(
+            lib_exc.Forbidden, self.zones_client.create_zone,
+            project_id=data_utils.rand_uuid())
+
     @decorators.idempotent_id('a3b0a928-a682-11eb-9899-74e5f9e2a801')
     def test_huge_size_description(self):
         LOG.info('Trying to create a zone using huge size description')