diff --git a/stacks/core/caddy/stack.yml b/stacks/core/caddy/stack.yml
index 686a84d..ce29c03 100644
--- a/stacks/core/caddy/stack.yml
+++ b/stacks/core/caddy/stack.yml
@@ -25,7 +25,7 @@ services:
       replicas: 1
       placement:
         constraints:
-          - node.role == p0
+          - node.hostname == p0
       restart_policy:
         condition: on-failure
         delay: 5s