diff --git a/k8s/charts/seaweedfs/templates/cert/admin-cert.yaml b/k8s/charts/seaweedfs/templates/cert/admin-cert.yaml
index defe448e6..196ce192e 100644
--- a/k8s/charts/seaweedfs/templates/cert/admin-cert.yaml
+++ b/k8s/charts/seaweedfs/templates/cert/admin-cert.yaml
@@ -25,6 +25,10 @@ spec:
     organizations:
     - "SeaweedFS CA"
   dnsNames:
+    - '{{ include "seaweedfs.fullname" . }}-admin'
+    - '{{ include "seaweedfs.fullname" . }}-admin.{{ .Release.Namespace }}'
+    - '{{ include "seaweedfs.fullname" . }}-admin.{{ .Release.Namespace }}.svc'
+    - '{{ include "seaweedfs.fullname" . }}-admin.{{ .Release.Namespace }}.svc.cluster.local'
     - '*.{{ include "seaweedfs.fullname" . }}-admin'
     - '*.{{ include "seaweedfs.fullname" . }}-admin.{{ .Release.Namespace }}'
     - '*.{{ include "seaweedfs.fullname" . }}-admin.{{ .Release.Namespace }}.svc'