diff --git a/terraform/modules/cf_to_pubsub/cf_to_pubsub.tf b/terraform/modules/cf_to_pubsub/cf_to_pubsub.tf
index a46baef..d957e26 100644
--- a/terraform/modules/cf_to_pubsub/cf_to_pubsub.tf
+++ b/terraform/modules/cf_to_pubsub/cf_to_pubsub.tf
@@ -1,3 +1,6 @@
+# Example message:
+# curl -H "Content-Type: application/json" -d '{"time": "2021-07-20T05:05:47", "service": "foo", "log": "bar"}' -X POST 'https://us-central1-hip-wharf-319304.cloudfunctions.net/cf-to-pubsub'
+
 variable "project" {
   description = "Project ID."
   type        = string