diff --git a/roles/mail_server/templates/99-local.conf.j2 b/roles/mail_server/templates/99-local.conf.j2
index e5178291718081b59771dbcc7acb132fa204936a..9fb92985ebb9e8d70efa536f7872e97836bdbe89 100644
--- a/roles/mail_server/templates/99-local.conf.j2
+++ b/roles/mail_server/templates/99-local.conf.j2
@@ -31,7 +31,7 @@ service auth {
 # TLS configuration.
 ssl_cert = </etc/ssl/certs/{{ ansible_fqdn }}_imap.pem
 ssl_key = </etc/ssl/private/{{ ansible_fqdn }}_imap.key
-ssl_dh=</etc/ssl/private/{{ inventory_hostname }}_imap.dh.pem
+ssl_dh=</etc/ssl/private/{{ ansible_fqdn }}_imap.dh.pem
 ssl_min_protocol = {{ mail_server_minimum_tls_protocol }}
 ssl_cipher_list = {{ mail_server_tls_ciphers }}
 ssl = required