diff --git a/website/docs/backends/types/s3.html.md b/website/docs/backends/types/s3.html.md
index 100e33ecb..baa0abd8d 100644
--- a/website/docs/backends/types/s3.html.md
+++ b/website/docs/backends/types/s3.html.md
@@ -166,7 +166,9 @@ The following configuration options or environment variables are supported:
    locking and consistency. The table must have a primary key named LockID. If
    not present, locking will be disabled.
  * `profile` - (Optional) This is the AWS profile name as set in the
-   shared credentials file.
+   shared credentials file. It can also be sourced from the `AWS_PROFILE`
+   environment variable if `AWS_SDK_LOAD_CONFIG` is set to a truthy value,
+   e.g. `AWS_SDK_LOAD_CONFIG=1`.
  * `shared_credentials_file`  - (Optional) This is the path to the
    shared credentials file. If this is not set and a profile is specified,
    `~/.aws/credentials` will be used.