diff --git a/dns/nsd/Makefile b/dns/nsd/Makefile
index cc39f5c9a1ca..2b81cf81561b 100644
--- a/dns/nsd/Makefile
+++ b/dns/nsd/Makefile
@@ -2,7 +2,7 @@
 # $FreeBSD$
 
 PORTNAME=	nsd
-PORTVERSION=	4.1.12
+PORTVERSION=	4.1.13
 CATEGORIES=	dns ipv6
 MASTER_SITES=	http://www.nlnetlabs.nl/downloads/nsd/	\
 		ftp://ftp.rhnet.is/pub/nsd/
@@ -50,8 +50,9 @@ PORTDOCS=	CREDITS ChangeLog LICENSE NSD-DATABASE NSD-DIFFFILE \
 		differences.tex
 
 OPTIONS_DEFINE=		ROOT_SERVER LARGEFILE IPV6 BIND8_STATS CHECKING \
-		MINRESPSIZE NSEC3 MMAP DOCS RRL ZONE_STATS MUNIN_PLUGIN
-OPTIONS_DEFAULT=	LARGEFILE NSEC3 MINRESPSIZE RRL
+		MINRESPSIZE NSEC3 MMAP DOCS RRL ZONE_STATS MUNIN_PLUGIN \
+		RADIXTREE
+OPTIONS_DEFAULT=	LARGEFILE NSEC3 MINRESPSIZE RRL RADIXTREE
 OPTIONS_SUB=	yes
 
 MUNIN_PLUGIN_IMPLIES=	BIND8_STATS
@@ -66,6 +67,7 @@ MMAP_DESC=		Use mmap instead of malloc (experimental)
 RRL_DESC=		Response Rate Limiting
 ZONE_STATS_DESC=	Separate statistics for each zone
 MUNIN_PLUGIN_DESC=	Install Munin plugin (requires BIND8_STATS)
+RADIXTREE_DESC=		Enabled: more (15%) memory use but less CPU cycles
 
 LIB_DEPENDS+=	libevent.so:devel/libevent2
 
@@ -79,6 +81,7 @@ MMAP_CONFIGURE_ENABLE=		mmap
 RRL_CONFIGURE_ENABLE=		ratelimit
 ZONE_STATS_CONFIGURE_ENABLE=	zone-stats
 IPV6_CONFIGURE_ENABLE=		ipv6
+RADIXTREE_CONFIGURE_ENABLE=	radix-tree
 
 post-build-MUNIN_PLUGIN-on:
 	${REINPLACE_CMD} \
diff --git a/dns/nsd/distinfo b/dns/nsd/distinfo
index a042f9e33ee4..35c5ef9c9a4a 100644
--- a/dns/nsd/distinfo
+++ b/dns/nsd/distinfo
@@ -1,3 +1,3 @@
-TIMESTAMP = 1472804520
-SHA256 (nsd-4.1.12.tar.gz) = fd1979dff1fba55310fd4f439dc9f3f4701d435c0ec4fb9af533e12c7f27d5de
-SIZE (nsd-4.1.12.tar.gz) = 1080273
+TIMESTAMP = 1474969514
+SHA256 (nsd-4.1.13.tar.gz) = c45cd4ba2101a027e133b2be44db9378e27602e05f09a5ef25019e1ae45291af
+SIZE (nsd-4.1.13.tar.gz) = 1085701