diff --git a/charts/argo-cd/README.md b/charts/argo-cd/README.md
index 02b82bce..e7ed08f9 100644
--- a/charts/argo-cd/README.md
+++ b/charts/argo-cd/README.md
@@ -523,7 +523,7 @@ NAME: my-release
 |-----|------|---------|-------------|
 | configs.clusterCredentials | list | `[]` (See [values.yaml]) | Provide one or multiple [external cluster credentials] |
 | configs.cm."admin.enabled" | bool | `true` | Enable local admin user |
-| configs.cm."application.instanceLabelKey" | string | `"argocd.argoproj.io/instance"` | The name of tracking label used by Argo CD for resource pruning |
+| configs.cm."application.instanceLabelKey" | string | Defaults to app.kubernetes.io/instance | The name of tracking label used by Argo CD for resource pruning |
 | configs.cm."exec.enabled" | bool | `false` | Enable exec feature in Argo UI |
 | configs.cm."kustomize.setNamespace.enabled" | bool | `false` | Enable set namespace during kustomize build |
 | configs.cm."server.rbac.log.enforce.enable" | bool | `false` | Enable logs RBAC enforcement |