diff --git a/roles/taskotron/buildmaster-configure/templates/taskotron.master.cfg.j2 b/roles/taskotron/buildmaster-configure/templates/taskotron.master.cfg.j2
index ee45fcac38..edab2832d2 100644
--- a/roles/taskotron/buildmaster-configure/templates/taskotron.master.cfg.j2
+++ b/roles/taskotron/buildmaster-configure/templates/taskotron.master.cfg.j2
@@ -278,7 +278,7 @@ def html_message_formatter(mode, name, build, results, master_status):
 
 mn = MailNotifier(fromaddr='taskotron@fedoraproject.org',
                   sendToInterestedUsers=False,
-                  subject="%(projectName)s %(result)s on " + deployment_type + " %(builder)s",
+                  subject="%(projectName)s %(result)s on {{ deployment_type }} %(builder)s",
                   mode=('failing', 'exception', 'warnings'),
                   extraRecipients=['qa-taskotron-admin-members@fedoraproject.org'],
                   relayhost="bastion.phx2.fedoraproject.org",