diff --git a/examples/templates/docker/README.md b/examples/templates/docker/README.md
index a42e03de46ce7..f1a5e3c8489a4 100644
--- a/examples/templates/docker/README.md
+++ b/examples/templates/docker/README.md
@@ -21,7 +21,7 @@ vim main.tf
 
 Modify your file to match the following:
 
-```hcl
+```diff
 variable "docker_image" {
   description = "What Docker image would you like to use for your workspace?"
   default     = "codercom/enterprise-base:ubuntu"