diff --git a/subnet.aqua b/subnet.aqua
index eb51503..dba2e26 100644
--- a/subnet.aqua
+++ b/subnet.aqua
@@ -1,7 +1,7 @@
 aqua SubnetLib declares *
 
 data Worker:
-  pat_id: string
+  cu_ids: []string
   host_id: string
   worker_id: ?string