diff --git a/maas/map.jinja b/maas/map.jinja
index d471585..73aaf37 100644
--- a/maas/map.jinja
+++ b/maas/map.jinja
@@ -1,5 +1,10 @@
 {%- set version = salt['pillar.get']('maas:cluster:version') %}
 
+{%- load_yaml as cluster_defaults %}
+{%- endload %}
+
+{%- set cluster = salt['grains.filter_by'](cluster_defaults, merge=salt['pillar.get']('maas:cluster', {})) %}
+
 {%- load_yaml as region_defaults %}
 Debian:
   pkgs: