diff --git a/postfix-relay/templates/main.cf.j2 b/postfix-relay/templates/main.cf.j2
index 60fef877..d9341502 100644
--- a/postfix-relay/templates/main.cf.j2
+++ b/postfix-relay/templates/main.cf.j2
@@ -16,18 +16,19 @@ readme_directory = no
 
 # TLS parameters
 # Server
-{% if letsencrypt_acme_install is defined and letsencrypt_acme_install %}
+{% if letsencrypt_acme_install is defined %}
 {% if postfix_use_letsencrypt %}
 smtpd_tls_cert_file={{ letsencrypt_acme_certs_dir }}/cert
 smtpd_tls_key_file={{ letsencrypt_acme_certs_dir }}/privkey
 {% else %}
 smtpd_tls_cert_file=/etc/ssl/certs/ssl-cert-snakeoil.pem
 smtpd_tls_key_file=/etc/ssl/private/ssl-cert-snakeoil.key
-{% else %}
+{% endif %}
+{% endif %}
+{% if letsencrypt_acme_install is not defined %}
 smtpd_tls_cert_file=/etc/ssl/certs/ssl-cert-snakeoil.pem
 smtpd_tls_key_file=/etc/ssl/private/ssl-cert-snakeoil.key
 {% endif %}
-{% endif %}
 smtpd_tls_session_cache_database = btree:${data_directory}/smtpd_scache
 {% if postfix_relay_server %}
 smtpd_tls_security_level = encrypt