diff --git a/website/docs/backends/types/s3.html.md b/website/docs/backends/types/s3.html.md
index 51419cd77..b4b86ec7e 100644
--- a/website/docs/backends/types/s3.html.md
+++ b/website/docs/backends/types/s3.html.md
@@ -108,3 +108,6 @@ The following configuration options or environment variables are supported:
  * `assume_role_policy` - (Optional) The permissions applied when assuming a role.
  * `external_id` - (Optional) The external ID to use when assuming the role.
  * `session_name` - (Optional) The session name to use when assuming the role.
+ * `workspace_key_prefix` - (Optional) The prefix applied to the state path 
+   inside the bucket. This is only relevant when using a non-default workspace.
+   This defaults to "env:"