diff --git a/roles/shell/files/etc/postfix/main.cf b/roles/shell/files/etc/postfix/main.cf
index 6a8a130..651312d 100644
--- a/roles/shell/files/etc/postfix/main.cf
+++ b/roles/shell/files/etc/postfix/main.cf
@@ -66,7 +66,7 @@ smtpd_recipient_restrictions =
  reject_unknown_recipient_domain,
  check_policy_service unix:private/policyd-spf,
  reject_rbl_client spamsources.fabel.dk,
- reject_rbl_client bl.fmb.la=127.0.1.[24,25,26,27,28],
+ reject_rbl_client bl.fmb.la=127.0.1.[24;25;26;27;28],
  reject_rbl_client dnsbl-2.uceprotect.net,
  reject_rbl_client spam.dnsbl.anonmails.de,
  reject_rbl_client uribl.abuse.ro,