diff --git a/metadata.yaml b/metadata.yaml
index 0a87291..4fc084e 100644
--- a/metadata.yaml
+++ b/metadata.yaml
@@ -9,6 +9,10 @@ description: |
 tags:
   - containers
   - layer
+series:
+  - trusty
+  - wily
+  - xenial
 subordinate: false
 provides:
   dockerhost: