diff --git a/roles/mail_forwarder/defaults/main.yml b/roles/mail_forwarder/defaults/main.yml
index 9c75026da95130464a22ecd45debea346b2ad525..7e9d19e3ca190b420a4751bd956077d0700dfca5 100644
--- a/roles/mail_forwarder/defaults/main.yml
+++ b/roles/mail_forwarder/defaults/main.yml
@@ -3,6 +3,5 @@
 local_mail_aliases: {}
 smtp_from_relay_allowed: true
 smtp_relay_host: ""
-smtp_relay_truststore: "{{ lookup('file', tls_certificate_dir + '/truststore.pem') }}"
 smtp_relay_host_port: null
 mail_message_size_limit: 10240000