diff --git a/zaza/charm_tests/nova/tests.py b/zaza/charm_tests/nova/tests.py
index 2038a60..f7ef1ff 100644
--- a/zaza/charm_tests/nova/tests.py
+++ b/zaza/charm_tests/nova/tests.py
@@ -112,7 +112,7 @@ class BaseGuestCreateTest(unittest.TestCase):
 class CirrosGuestCreateTest(BaseGuestCreateTest):
     """Tests to launch a cirros image."""
 
-    def test_launch_small_cirros_instance(self):
+    def test_launch_small_instance(self):
         """Launch a cirros instance and test connectivity."""
         self.launch_instance(glance_setup.CIRROS_IMAGE_NAME)
 
@@ -120,6 +120,6 @@ class CirrosGuestCreateTest(BaseGuestCreateTest):
 class LTSGuestCreateTest(BaseGuestCreateTest):
     """Tests to launch a LTS image."""
 
-    def test_launch_small_cirros_instance(self):
-        """Launch a cirros instance and test connectivity."""
+    def test_launch_small_instance(self):
+        """Launch a Bionic instance and test connectivity."""
         self.launch_instance(glance_setup.LTS_IMAGE_NAME)
diff --git a/zaza/charm_tests/series_upgrade/tests.py b/zaza/charm_tests/series_upgrade/tests.py
index 79d652e..c61d48a 100644
--- a/zaza/charm_tests/series_upgrade/tests.py
+++ b/zaza/charm_tests/series_upgrade/tests.py
@@ -40,7 +40,7 @@ class SeriesUpgradeTest(unittest.TestCase):
     def validate_pre_series_upgrade_cloud(self):
         """Validate pre series upgrade."""
         logging.info("Validate pre-series-upgrade: Spin up LTS instance")
-        self.lts.test_launch_small_cirros_instance()
+        self.lts.test_launch_small_instance()
 
     def test_200_run_series_upgrade(self):
         """Run series upgrade."""
@@ -92,7 +92,7 @@ class SeriesUpgradeTest(unittest.TestCase):
     def validate_series_upgraded_cloud(self):
         """Validate post series upgrade."""
         logging.info("Validate post-series-upgrade: Spin up LTS instance")
-        self.lts.test_launch_small_cirros_instance()
+        self.lts.test_launch_small_instance()
 
 
 if __name__ == "__main__":