diff --git a/templates/docker-compose.yml.twig b/templates/docker-compose.yml.twig
index be1fdef0f54380445e7e79660657c61d1c7038ad..666dfa5563cc57994835eb9715d3abd9feec93be 100644
--- a/templates/docker-compose.yml.twig
+++ b/templates/docker-compose.yml.twig
@@ -79,7 +79,7 @@ services:
     labels:
       traefik.backend: '{{ projectname }}_{{ webserver.type }}_1'
       traefik.port: '80'
-      traefik.frontend.rule: 'Host:{{ projectname }}.docker.localhost'
+      traefik.frontend.rule: 'Host:{{ projectname }}.docker.localhost{% for domain in extradomains|default([]) %},{{ domain }}{% endfor %}'
 {% if varnish.enable %}
 
   varnish:
diff --git a/templates/settings.docker.php.twig b/templates/settings.docker.php.twig
index fed8d7539265e1665ce61f167cf0029d1199d9df..5b71934d7edae42b9362034b088456b9862c30c7 100644
--- a/templates/settings.docker.php.twig
+++ b/templates/settings.docker.php.twig
@@ -4,6 +4,9 @@
 $settings['trusted_host_patterns'] = array(
   '^{{ projectname }}\.docker\.localhost$',
   '^{{ webserver.type }}$',
+{% for domain in extradomains|default([]) %}
+  '^{{ domain|replace({".": "\\."}) }}$',
+{% endfor %}
 );
 $databases = array(
   'default' => array(