diff --git a/zaza/openstack/utilities/os_versions.py b/zaza/openstack/utilities/os_versions.py
index fdb6f0f..beaedec 100644
--- a/zaza/openstack/utilities/os_versions.py
+++ b/zaza/openstack/utilities/os_versions.py
@@ -121,6 +121,8 @@ OVN_CODENAMES = OrderedDict([
         ['20.03']),
     ('victoria',
         ['20.06']),
+    ('wallaby',
+        ['20.12']),
 ])
 
 # >= Liberty version->codename mapping