diff --git a/mail/postfix/stable/Makefile b/mail/postfix/stable/Makefile
index 43e5c62ee7a..ae474285673 100644
--- a/mail/postfix/stable/Makefile
+++ b/mail/postfix/stable/Makefile
@@ -1,5 +1,4 @@
-VERSION=	3.9.0
-REVISION=	2
+VERSION=	3.9.1
 
 EPOCH=		0
 
diff --git a/mail/postfix/stable/distinfo b/mail/postfix/stable/distinfo
index b321e61139e..beedc16125a 100644
--- a/mail/postfix/stable/distinfo
+++ b/mail/postfix/stable/distinfo
@@ -1,2 +1,2 @@
-SHA256 (postfix/postfix-3.9.0.tar.gz) = VvXkIOfCVFWk6WwZtnL4D5oKNftb7MkkfJ49XcxhfzQ=
-SIZE (postfix/postfix-3.9.0.tar.gz) = 4953133
+SHA256 (postfix/postfix-3.9.1.tar.gz) = xIiUTrA2JXbRj1+MxLmzKjW8s11xuUfarJdkr0dw9kM=
+SIZE (postfix/postfix-3.9.1.tar.gz) = 4953855
diff --git a/mail/postfix/stable/patches/patch-conf_master_cf b/mail/postfix/stable/patches/patch-conf_master_cf
index 523860a67bd..9ca23c06357 100644
--- a/mail/postfix/stable/patches/patch-conf_master_cf
+++ b/mail/postfix/stable/patches/patch-conf_master_cf
@@ -68,7 +68,7 @@ Index: conf/master.cf
 -relay     unix  -       -       n       -       -       smtp
 +smtp      unix  -       -       y       -       -       smtp
 +relay     unix  -       -       y       -       -       smtp
-         -o syslog_name=postfix/$service_name
+         -o syslog_name=${multi_instance_name?{$multi_instance_name}:{postfix}}/$service_name
  #       -o smtp_helo_timeout=5 -o smtp_connect_timeout=5
 -showq     unix  n       -       n       -       -       showq
 -error     unix  -       -       n       -       -       error