diff --git a/docs/content/s3.md b/docs/content/s3.md
index 401f9f647..f99d2277f 100644
--- a/docs/content/s3.md
+++ b/docs/content/s3.md
@@ -157,7 +157,9 @@ credentials. In order of precedence:
    - set `access_key_id` and `secret_access_key`
  - Runtime configuration:
    - set `env_auth` to `true` in the config file
-   - Exporting `AWS_ACCESS_KEY` and `AWS_SECRET_KEY` while running `rclone`
+   - Exporting the following environment variables before running `rclone`
+     - Access Key ID: `AWS_ACCESS_KEY_ID` or `AWS_ACCESS_KEY`
+     - Secret Access Key: `AWS_SECRET_ACCESS_KEY` or `AWS_SECRET_KEY`
    - Running `rclone` on an EC2 instance with an IAM role
 
 If none of these option actually end up providing `rclone` with AWS