diff --git a/config/paths-debian.conf b/config/paths-debian.conf
index f3bf4ff0..e16ccf0a 100644
--- a/config/paths-debian.conf
+++ b/config/paths-debian.conf
@@ -33,3 +33,8 @@ exim_main_log = /var/log/exim4/mainlog
 proftpd_log = /var/log/proftpd/proftpd.log
 
 roundcube_errors_log = /var/log/roundcube/errors.log
+
+# These services will log to the journal via syslog, so use the journal by
+# default.
+sshd_backend = systemd
+postfix_backend = systemd