diff --git a/README.md b/README.md
index 13abed5..fc6bc26 100644
--- a/README.md
+++ b/README.md
@@ -10,10 +10,12 @@ You will need the following installed:
 
 ## Usage
 
+From either `backend/` or `main/`:
+
 ```shell
 $ terraform init
 ```
 
 ```shell
-$ terraform plan
+$ terraform plan -var-file ../credentials.tfvars
 ```
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