diff --git a/component/app.jsonnet b/component/app.jsonnet
index 8f81e48..693aeb4 100644
--- a/component/app.jsonnet
+++ b/component/app.jsonnet
@@ -11,5 +11,13 @@ local appPath =
   if project == 'syn' then 'apps' else 'apps-%s' % project;
 
 {
-  ['%s/backup-k8up' % appPath]: app,
+  ['%s/backup-k8up' % appPath]: app {
+    metadata+: {
+      finalizers: [
+        'resources-finalizer.argocd.argoproj.io',
+        'post-delete-finalizer.argocd.argoproj.io',
+        'post-delete-finalizer.argocd.argoproj.io/cleanup'
+      ],
+    },
+  },
 }
diff --git a/tests/golden/defaults/backup-k8up/apps/backup-k8up.yaml b/tests/golden/defaults/backup-k8up/apps/backup-k8up.yaml
index e69de29..ac5b873 100644
--- a/tests/golden/defaults/backup-k8up/apps/backup-k8up.yaml
+++ b/tests/golden/defaults/backup-k8up/apps/backup-k8up.yaml
@@ -0,0 +1,5 @@
+metadata:
+  finalizers:
+    - resources-finalizer.argocd.argoproj.io
+    - post-delete-finalizer.argocd.argoproj.io
+    - post-delete-finalizer.argocd.argoproj.io/cleanup