diff --git a/charts/pmm/README.md b/charts/pmm/README.md
index 0aa265b0..138ec4ed 100644
--- a/charts/pmm/README.md
+++ b/charts/pmm/README.md
@@ -60,7 +60,7 @@ It removes all of the resources associated with the last release of the chart as
 | --------------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ------------ |
 | `secret.name`         | Defines the name of the k8s secret that holds passwords and other secrets                                                                                                          | `pmm-secret` |
 | `secret.annotations`  | Defines the annotations of the k8s secret that holds passwords and other secrets                                                                                                   | `{}`         |
-| `secret.create`       | If true then secret will be generated by Helm chart. Otherwise it is expected to be created by user.                                                                               | `true`       |
+| `secret.create`       | If true then secret will be generated by Helm chart. Otherwise it is expected to be created by user and all of its keys will be mounted as env vars.                                                                               | `true`       |
 | `secret.pmm_password` | Initial PMM password - it changes only on the first deployment, ignored if PMM was already provisioned and just restarted. If PMM admin password is not set, it will be generated. | `""`         |
 | `certs`               | Optional certificates, if not provided PMM would use generated self-signed certificates,                                                                                           | `{}`         |