diff --git a/topd/init.top b/topd/init.top
index 5cec7f8..1244393 100644
--- a/topd/init.top
+++ b/topd/init.top
@@ -1,5 +1,6 @@
 # vim: set syntax=yaml ts=2 sw=2 sts=2 et :
 
 base:
-  '*':
+  'dom0':
+    - match: nodegroup
     - topd