diff --git a/kubernetes/apps/monitoring/alertmanager/app/externalsecret.yaml b/kubernetes/apps/monitoring/alertmanager/app/externalsecret.yaml
index 7fd5f8f..ed2fbf9 100644
--- a/kubernetes/apps/monitoring/alertmanager/app/externalsecret.yaml
+++ b/kubernetes/apps/monitoring/alertmanager/app/externalsecret.yaml
@@ -1,4 +1,5 @@
 ---
+# yaml-language-server: $schema=https://ks.hsn.dev/external-secrets.io/externalsecret_v1beta1.json
 apiVersion: external-secrets.io/v1beta1
 kind: ExternalSecret
 metadata: