diff --git a/templates/haproxy_cfg.jinja2 b/templates/haproxy_cfg.jinja2
index b18a9fdb543d81bf6112d2ef32bce34b9760fb04..82614a5eece16dd53faaae9b9bcc5fd047b05de7 100644
--- a/templates/haproxy_cfg.jinja2
+++ b/templates/haproxy_cfg.jinja2
@@ -269,6 +269,9 @@ frontend https_in_{{ cert.ip }}
 {% for external in cert.external|default([]) %}
 
 backend backend_{{ external.key }}
+{% for line in external.extra|default([]) %}
+  {{ line }}
+{% endfor %}
   server server_{{ external.key }} {{ external.server }} check {{ external.options|default('') }}
 {% endfor %}
 {% endfor %}