diff --git a/charts/capsule/README.md b/charts/capsule/README.md
index f39e38f5..808a1a42 100644
--- a/charts/capsule/README.md
+++ b/charts/capsule/README.md
@@ -99,6 +99,7 @@ Here the values you can override:
 |-----|------|---------|-------------|
 | affinity | object | `{}` | Set affinity rules for the Capsule pod |
 | certManager.generateCertificates | bool | `false` | Specifies whether capsule webhooks certificates should be generated using cert-manager |
+| certManager.additionalSANS | list | `[]` |  Specify additional SAN to add to the certificate |
 | customAnnotations | object | `{}` | Additional annotations which will be added to all resources created by Capsule helm chart |
 | customLabels | object | `{}` | Additional labels which will be added to all resources created by Capsule helm chart |
 | imagePullSecrets | list | `[]` | Configuration for `imagePullSecrets` so that you can use a private images registry. |
diff --git a/charts/capsule/templates/certificate.yaml b/charts/capsule/templates/certificate.yaml
index 29d6ff4d..9ad96f05 100644
--- a/charts/capsule/templates/certificate.yaml
+++ b/charts/capsule/templates/certificate.yaml
@@ -27,6 +27,9 @@ spec:
   dnsNames:
   - {{ include "capsule.fullname" . }}-webhook-service.{{ .Release.Namespace }}.svc
   - {{ include "capsule.fullname" . }}-webhook-service.{{ .Release.Namespace }}.svc.cluster.local
+  {{- range  .Values.certManager.additionalSANS }}
+  - {{ toYaml . }} 
+  {{- end }}
   issuerRef:
     kind: Issuer
     name: {{ include "capsule.fullname" . }}-webhook-selfsigned
diff --git a/charts/capsule/values.yaml b/charts/capsule/values.yaml
index 5d486395..061f8d58 100644
--- a/charts/capsule/values.yaml
+++ b/charts/capsule/values.yaml
@@ -212,7 +212,8 @@ serviceAccount:
 certManager:
   # -- Specifies whether capsule webhooks certificates should be generated using cert-manager
   generateCertificates: false
-
+  # -- Specify additional SANS to add to the certificate
+  additionalSANS: []
 # -- Additional labels which will be added to all resources created by Capsule helm chart
 customLabels: {}