diff --git a/roles/mail_server/templates/main.cf.j2 b/roles/mail_server/templates/main.cf.j2
index 623012ba7db4164381c4405282e02ed088d85bd6..dc36f62783ce61886f1107edbcce50ce8eceb281 100644
--- a/roles/mail_server/templates/main.cf.j2
+++ b/roles/mail_server/templates/main.cf.j2
@@ -50,8 +50,8 @@ smtpd_sasl_auth_enable = yes
 # TLS configuration.
 smtpd_tls_security_level = may
 smtpd_tls_auth_only = yes
-smtpd_tls_cert_file = {{ smtp_tls_certificate }}
-smtpd_tls_key_file = {{ smtp_tls_key }}
+smtpd_tls_cert_file = /etc/ssl/certs/{{ smtp_tls_certificate | basename }}
+smtpd_tls_key_file = /etc/ssl/private/{{ smtp_tls_key | basename }}
 smtpd_use_tls=yes
 smtpd_tls_session_cache_database = btree:${data_directory}/smtpd_scache
 smtp_tls_session_cache_database = btree:${data_directory}/smtp_scache