diff --git a/pkg/provider/kubernetes/crd/kubernetes_http.go b/pkg/provider/kubernetes/crd/kubernetes_http.go
index 0adca3e75..ed318e276 100644
--- a/pkg/provider/kubernetes/crd/kubernetes_http.go
+++ b/pkg/provider/kubernetes/crd/kubernetes_http.go
@@ -307,8 +307,13 @@ func (c configBuilder) loadServers(fallbackNamespace string, svc v1alpha1.LoadBa
 
 	var servers []dynamic.Server
 	if service.Spec.Type == corev1.ServiceTypeExternalName {
+		protocol := "http"
+		if portSpec.Port == 443 || strings.HasPrefix(portSpec.Name, "https") {
+			protocol = "https"
+		}
+
 		return append(servers, dynamic.Server{
-			URL: fmt.Sprintf("http://%s:%d", service.Spec.ExternalName, portSpec.Port),
+			URL: fmt.Sprintf("%s://%s:%d", protocol, service.Spec.ExternalName, portSpec.Port),
 		}), nil
 	}