diff --git a/docs/usage.rst b/docs/usage.rst
index ecfc0984d1dcecb5f25da43d0cff6003532cb543..f2688f709d8722b660b01a3cdcedae6c394c558c 100644
--- a/docs/usage.rst
+++ b/docs/usage.rst
@@ -607,7 +607,7 @@ one up first. This includes both the LDAP *server* and *client* configuration.
       tls_private_key_dir: "~/mysite/tls/"
       tls_certificate_dir: "~/mysite/tls/"
       ca_certificates:
-         - "~/mysite/tls/truststore.pem"
+         "truststore.pem": "{{ lookup('file', '~/mysite/tls/truststore.pem') }}"
 
 8. And now as finishing touch, simply run the playbooks again::