diff --git a/charts/templates/deployment-ical.yaml b/charts/templates/deployment-ical.yaml
index 6454d8a..e4cf32c 100644
--- a/charts/templates/deployment-ical.yaml
+++ b/charts/templates/deployment-ical.yaml
@@ -33,6 +33,9 @@ spec:
             - name: ical
               containerPort: {{ .Values.ical.service.targetPort }}
               protocol: TCP
+            - name: ical-protobuf
+              containerPort: {{ .Values.ical.service.protobufTargetPort }}
+              protocol: TCP
           env:
             - name: DATA_MANAGER_URL
               value: {{ .Values.dataManager.service.name }}
\ No newline at end of file
diff --git a/charts/templates/service-ical.yaml b/charts/templates/service-ical.yaml
index f93cd47..8015fa6 100644
--- a/charts/templates/service-ical.yaml
+++ b/charts/templates/service-ical.yaml
@@ -15,3 +15,7 @@ spec:
       targetPort: {{ .Values.ical.service.targetPort }}
       protocol: TCP
       name: ical
+    - port: {{ .Values.ical.service.protobufPort }}
+      targetPort: {{ .Values.ical.service.protobufTargetPort }}
+      protocol: TCP
+      name: ical-protobuf
diff --git a/charts/values.yaml b/charts/values.yaml
index 54ee4d4..a22a06f 100644
--- a/charts/values.yaml
+++ b/charts/values.yaml
@@ -10,7 +10,7 @@ dataManager:
     name: &service_data_manager htwkalender-data-manager
     port: &service_data_manager_port 8090
     targetPort: 8090
-    protobufPort: &service_data_manager_protobuf_port 50051
+    protobufPort: 50051
     protobufTargetPort: 50051
 ical:
   name: ical
@@ -22,6 +22,8 @@ ical:
     name: &service_ical htwkalender-ical
     port: &service_ical_port 8091
     targetPort: 8091
+    protobufPort: 50051
+    protobufTargetPort: 50051
 frontend:
   name: frontend
   host: &frontend_host "FRONTEND_URL"