diff --git a/kubernetes/apps/cert-manager/cert-manager/issuers/externalsecret.yaml b/kubernetes/apps/cert-manager/cert-manager/issuers/externalsecret.yaml
index eb78c41..d5d62de 100644
--- a/kubernetes/apps/cert-manager/cert-manager/issuers/externalsecret.yaml
+++ b/kubernetes/apps/cert-manager/cert-manager/issuers/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: