diff --git a/quickstart/101-front-door-classic/main.tf b/quickstart/101-front-door-classic/main.tf
index e1f2e2d79..6aaed77c1 100644
--- a/quickstart/101-front-door-classic/main.tf
+++ b/quickstart/101-front-door-classic/main.tf
@@ -1,4 +1,4 @@
-resource "random_pet" "rg-name" {
+resource "random_pet" "rg_name" {
   prefix = var.resource_group_name_prefix
 }