diff --git a/net/ntop/Makefile b/net/ntop/Makefile
index 0691e9491fe1..a6006139f415 100644
--- a/net/ntop/Makefile
+++ b/net/ntop/Makefile
@@ -7,6 +7,7 @@
 
 PORTNAME=	ntop
 PORTVERSION=	3.0
+PORTREVISION=	1
 CATEGORIES=	net ipv6
 MASTER_SITES=	${MASTER_SITE_SOURCEFORGE}
 MASTER_SITE_SUBDIR=	${PORTNAME}
diff --git a/net/ntop/files/patch-util.c b/net/ntop/files/patch-util.c
new file mode 100644
index 000000000000..0fa09ede8247
--- /dev/null
+++ b/net/ntop/files/patch-util.c
@@ -0,0 +1,12 @@
+--- util.c.orig	Thu Oct 28 03:00:09 2004
++++ util.c	Thu Oct 28 02:58:27 2004
+@@ -453,7 +453,8 @@
+     if(!strcmp(ii->name,device))
+       if(iface_if_getinfo(ii) & IFACE_INFO_UP) {
+ 	/* Allocate memory for IPv6 addresses*/
+-	count = iface_if_addrcount(ii, AF_INET6);
++	if ((count = iface_if_addrcount(ii, AF_INET6)) == 0)
++	    return NULL;
+ 	addrs = (NtopIfaceAddr *)calloc(count, sizeof(NtopIfaceAddr));
+ 	addr_pos = 0;
+ 	for(ia = iface_getaddr_first(ii, AF_INET6) ; ia ;