diff --git a/docker/authelia/config/configuration.server.yml b/docker/authelia/config/configuration.server.yml
index e0e30b1..afb2a8a 100644
--- a/docker/authelia/config/configuration.server.yml
+++ b/docker/authelia/config/configuration.server.yml
@@ -62,8 +62,7 @@ session:
   inactivity: 5m
   remember_me: 1M
   cookies:
-  {% set domains = (env("TRAEFIK_DOMAIN") | string).split(',') %}
-  {% for domain in domains %}
+  {% for domain in (env("TRAEFIK_DOMAIN") | string).split(',') %}
     - domain: {{ domain }}
       authelia_url: 'https://login.{{ domain }}'
       name: 'authelia_session'