diff --git a/srcpkgs/opensmtpd/patches/sockaddr.patch b/srcpkgs/opensmtpd/patches/sockaddr.patch
new file mode 100644
index 0000000000..c5d185c156
--- /dev/null
+++ b/srcpkgs/opensmtpd/patches/sockaddr.patch
@@ -0,0 +1,24 @@
+Else it smashes the stack when IPv6 is used.
+
+--- smtpd/mta_session.c
++++ smtpd/mta_session.c
+@@ -1811,15 +1811,15 @@
+ static void
+ mta_connected(struct mta_session *s)
+ {
+-	struct sockaddr sa_src;
+-	struct sockaddr sa_dest;
++	struct sockaddr_storage sa_src;
++	struct sockaddr_storage sa_dest;
+ 	int sa_len;
+ 
+ 	log_info("%016"PRIx64" mta connected", s->id);
+ 
+-	if (getsockname(io_fileno(s->io), &sa_src, &sa_len) == -1)
++	if (getsockname(io_fileno(s->io), (struct sockaddr *)(void *)&sa_src, &sa_len) == -1)
+ 		bzero(&sa_src, sizeof sa_src);
+-	if (getpeername(io_fileno(s->io), &sa_dest, &sa_len) == -1)
++	if (getpeername(io_fileno(s->io), (struct sockaddr *)(void *)&sa_dest, &sa_len) == -1)
+ 		bzero(&sa_dest, sizeof sa_dest);
+ 
+ 	mta_report_link_connect(s,
diff --git a/srcpkgs/opensmtpd/template b/srcpkgs/opensmtpd/template
index 0aa9fc46bd..fb7f4839df 100644
--- a/srcpkgs/opensmtpd/template
+++ b/srcpkgs/opensmtpd/template
@@ -1,7 +1,7 @@
 # Template file for 'opensmtpd'
 pkgname=opensmtpd
 version=6.7.0p1
-revision=1
+revision=2
 build_style=gnu-configure
 configure_args="--sysconfdir=/etc/smtpd --sbindir=/usr/bin
  --with-path-socket=/run --with-path-pidfile=/run