diff --git a/lit/docs/install/web.lit b/lit/docs/install/web.lit
index f511c245..6d0a9f3b 100644
--- a/lit/docs/install/web.lit
+++ b/lit/docs/install/web.lit
@@ -40,7 +40,7 @@ as performing all pipeline scheduling. It's basically the brain of Concourse.
   \codeblock{bash}{{{
   CONCOURSE_SESSION_SIGNING_KEY=path/to/session_signing_key
   CONCOURSE_TSA_HOST_KEY=path/to/tsa_host_key
-  CONCOURSE_TSA_AUTHORIZED_KEYS=path/to/authorized_worker_keys
+  CONCOURSE_TSA_AUTHORIZED_KEYS=path/to/authorized_worker_keys.pub
   }}}
 
   Finally, \code{web} needs to know how to reach your Postgres database. This