diff --git a/metadata.yaml b/metadata.yaml
index 72acc5f..4de85d7 100644
--- a/metadata.yaml
+++ b/metadata.yaml
@@ -9,6 +9,11 @@ tags:
   - storage
   - file-servers
   - misc
+series:
+  - xenial
+  - trusty
+  - precise
+  - yakkety
 extra-bindings:
   public:
   cluster: