diff --git a/openstack_releases/cmds/validate.py b/openstack_releases/cmds/validate.py
index 6dbd758a33..fc06ea25db 100644
--- a/openstack_releases/cmds/validate.py
+++ b/openstack_releases/cmds/validate.py
@@ -72,6 +72,7 @@ _CLOSED_SERIES = set([
     'train',
     'ussuri',
     'victoria',
+    'wallaby',
 ])
 
 _USES_PREVER = set([