diff --git a/tinkerbell/boots/templates/service.yaml b/tinkerbell/boots/templates/service.yaml
index 2e62f8c1..b197c9a2 100644
--- a/tinkerbell/boots/templates/service.yaml
+++ b/tinkerbell/boots/templates/service.yaml
@@ -10,7 +10,9 @@ metadata:
 spec:
   type: {{ .Values.service.type }}
   {{- if eq .Values.service.type "LoadBalancer" }}
+  {{- if .Values.service.class }}
   loadBalancerClass: {{ .Values.service.class }}
+  {{- end }}
   loadBalancerIP: {{ $loadBalancerIP }}
   {{- end }}
   externalTrafficPolicy: Local
diff --git a/tinkerbell/stack/templates/nginx.yaml b/tinkerbell/stack/templates/nginx.yaml
index d4632d28..2b8458a7 100644
--- a/tinkerbell/stack/templates/nginx.yaml
+++ b/tinkerbell/stack/templates/nginx.yaml
@@ -107,7 +107,9 @@ metadata:
 spec:
   type: {{ .Values.stack.service.type }}
   {{- if eq .Values.stack.service.type "LoadBalancer" }}
+  {{- if .Values.stack.lbClass }}
   loadBalancerClass: {{ .Values.stack.lbClass }}
+  {{- end }}
   loadBalancerIP: {{ .Values.stack.loadBalancerIP }}
   {{- end }}
   externalTrafficPolicy: Local