diff --git a/r/compute_backend_service.html.markdown b/r/compute_backend_service.html.markdown
index 5a862e23..3111cd9d 100644
--- a/r/compute_backend_service.html.markdown
+++ b/r/compute_backend_service.html.markdown
@@ -19,7 +19,7 @@ resource "google_compute_backend_service" "foobar" {
port_name = "http"
protocol = "HTTP"
timeout_sec = 10
- region = us-central1
+ region = "us-central1"
backend {
group = "${google_compute_instance_group_manager.foo.instance_group}"