diff --git a/src/main/helm/templates/deployment.yaml b/src/main/helm/templates/deployment.yaml
index b554d57c771f82258d30f20cd129eca4f55eb66f..84118a46a9b2cf122714d0eecaa61d77dba8d68a 100644
--- a/src/main/helm/templates/deployment.yaml
+++ b/src/main/helm/templates/deployment.yaml
@@ -107,10 +107,12 @@ spec:
           - name: ozgcloud_administration_sync_organisationseinheiten_cron
             value: {{ .Values.ozgcloud.sync.organisationseinheiten.cron | quote }}
           {{- end }}
+          {{- if (.Values.zufiManager).enabled }}
           - name: grpc_client_zufi-manager_address
             value: {{ .Values.zufiManager.address }}
           - name: grpc_client_zufi-manager_negotiationType
-            value: {{ (.Values.zufiManager).grpcClientNegotiationType | default "TLS" }}
+            value: {{ (.Values.zufiManager).grpcClientNegotiationType | default "PLAINTEXT" }}
+          {{- end}}
         envFrom:
           {{- if (.Values.database).useExternal }}
           - secretRef: