diff --git a/charts/tezos-signer-forwarder/templates/service.yaml b/charts/tezos-signer-forwarder/templates/service.yaml
index eb3346845..de05bd5dd 100644
--- a/charts/tezos-signer-forwarder/templates/service.yaml
+++ b/charts/tezos-signer-forwarder/templates/service.yaml
@@ -7,5 +7,5 @@ spec:
   selector:
     app: tezos-remote-signer-forwarder
   ports:
-  - port: ${{ .Values.tunnel_endpoint_port }}
+  - port: {{ .Values.tunnel_endpoint_port }}
     name: tunnel