diff --git a/kopia.yaml b/kopia.yaml
index f9d92bd..7d0e7c1 100644
--- a/kopia.yaml
+++ b/kopia.yaml
@@ -23,7 +23,7 @@ services:
     deploy:
       placement:
         constraints:
-          - node.hostname == nas
+          node.hostname: nas
       labels:
         diun.enable: "true"
         homepage.group: "Backup"