diff --git a/template/stacks/core/argocd-sso/argocd-secret.yaml b/template/stacks/core/argocd-sso/argocd-secret.yaml
index 0ca7b1c..105bdf4 100644
--- a/template/stacks/core/argocd-sso/argocd-secret.yaml
+++ b/template/stacks/core/argocd-sso/argocd-secret.yaml
@@ -14,6 +14,9 @@ spec:
       engineVersion: v2
       data:
         client_secret: "{{.ARGOCD_CLIENT_SECRET}}"
+      metadata:
+        labels:
+          app.kubernetes.io/part-of: argocd
   data:
     - secretKey: ARGOCD_CLIENT_SECRET
       remoteRef: