diff --git a/charts/actions-runner-controller/templates/certificate.yaml b/charts/actions-runner-controller/templates/certificate.yaml
index 200d7722..0000be44 100644
--- a/charts/actions-runner-controller/templates/certificate.yaml
+++ b/charts/actions-runner-controller/templates/certificate.yaml
@@ -21,4 +21,4 @@ spec:
   issuerRef:
     kind: Issuer
     name: {{ include "actions-runner-controller.selfsignedIssuerName" . }}
-  secretName: webhook-server-cert # this secret will not be prefixed, since it's not managed by kustomize
+  secretName: {{ include "actions-runner-controller.servingCertName" . }}
diff --git a/charts/actions-runner-controller/templates/deployment.yaml b/charts/actions-runner-controller/templates/deployment.yaml
index 7e8e4aaf..51e58462 100644
--- a/charts/actions-runner-controller/templates/deployment.yaml
+++ b/charts/actions-runner-controller/templates/deployment.yaml
@@ -134,7 +134,7 @@ spec:
       - name: cert
         secret:
           defaultMode: 420
-          secretName: webhook-server-cert
+          secretName: {{ include "actions-runner-controller.servingCertName" . }}
       - name: tmp
         emptyDir: {}
       {{- with .Values.nodeSelector }}