diff --git a/devel/marisa-trie/Makefile b/devel/marisa-trie/Makefile
index 5c18034776bd..260bab44d51a 100644
--- a/devel/marisa-trie/Makefile
+++ b/devel/marisa-trie/Makefile
@@ -5,7 +5,7 @@ PORTREVISION=	1
 PORTEPOCH=	1
 CATEGORIES=	devel
 
-MAINTAINER=	iblis@hs.ntnu.edu.tw
+MAINTAINER=	ports@FreeBSD.org
 COMMENT=	MARISA: Matching Algorithm with Recursively Implemented StorAge
 WWW=		https://github.com/s-yata/marisa-trie
 
diff --git a/math/openlibm/Makefile b/math/openlibm/Makefile
index 787f1277046a..f837894ade05 100644
--- a/math/openlibm/Makefile
+++ b/math/openlibm/Makefile
@@ -3,7 +3,7 @@ DISTVERSIONPREFIX=	v
 DISTVERSION=	0.8.0
 CATEGORIES=	math
 
-MAINTAINER=	iblis@hs.ntnu.edu.tw
+MAINTAINER=	ports@FreeBSD.org
 COMMENT=	High quality system independent, portable, open source libm
 WWW=		http://julialang.org/openlibm/
 
diff --git a/science/libsvm/Makefile b/science/libsvm/Makefile
index 07f4f87b5f6c..0d6c564d9a7b 100644
--- a/science/libsvm/Makefile
+++ b/science/libsvm/Makefile
@@ -4,7 +4,7 @@ CATEGORIES=	science math
 MASTER_SITES=	http://www.csie.ntu.edu.tw/~cjlin/libsvm/ \
 		http://www.csie.ntu.edu.tw/~cjlin/libsvm/oldfiles/
 
-MAINTAINER?=	iblis@hs.ntnu.edu.tw
+MAINTAINER?=	ports@FreeBSD.org
 COMMENT=	Library for Support Vector Machines
 WWW=		https://www.csie.ntu.edu.tw/~cjlin/libsvm/