diff --git a/terraform/terragrunt.hcl b/terraform/terragrunt.hcl
index d03886c..2b67074 100644
--- a/terraform/terragrunt.hcl
+++ b/terraform/terragrunt.hcl
@@ -19,6 +19,8 @@ remote_state {
   }
 }
 
+# This block will read all variables in shared.tfvars and append them
+# to all terrform commands that accept inputs
 terraform {
   extra_arguments "shared_vars" {
     commands = get_terraform_commands_that_need_vars()