diff --git a/deployment/data-model-test.nix b/deployment/data-model-test.nix
index cd8ed37d..bf643395 100644
--- a/deployment/data-model-test.nix
+++ b/deployment/data-model-test.nix
@@ -181,14 +181,15 @@ in
       {
         inherit (fediversity)
           example-configuration
-          example-deployment
           ;
+        has-deployment = lib.isAttrs fediversity.example-deployment.resources.the-machine;
       };
     expected = {
       example-configuration = {
         enable = true;
         applications.hello.enable = true;
       };
+      has-deployment = true;
     };
   };
 }