diff --git a/sci-mathematics/agda-stdlib/agda-stdlib-0.8.ebuild b/sci-mathematics/agda-stdlib/agda-stdlib-0.8.ebuild
index 6ccbc88c9a05a..cc2c3416beae5 100644
--- a/sci-mathematics/agda-stdlib/agda-stdlib-0.8.ebuild
+++ b/sci-mathematics/agda-stdlib/agda-stdlib-0.8.ebuild
@@ -1,4 +1,4 @@
-# Copyright 1999-2014 Gentoo Foundation
+# Copyright 1999-2015 Gentoo Foundation
 # Distributed under the terms of the GNU General Public License v2
 # $Id$
 
@@ -60,7 +60,7 @@ src_test() {
 
 src_install() {
 	insinto usr/share/agda-stdlib
-	export INSOPTIONS=--preserve-timestamps
+	insopts --preserve-timestamps
 	doins -r src/*
 	dodoc -r html/*
 	elisp-site-file-install "${FILESDIR}/${SITEFILE}" || die
diff --git a/sci-mathematics/agda-stdlib/agda-stdlib-0.9.ebuild b/sci-mathematics/agda-stdlib/agda-stdlib-0.9.ebuild
index 6ccbc88c9a05a..cc2c3416beae5 100644
--- a/sci-mathematics/agda-stdlib/agda-stdlib-0.9.ebuild
+++ b/sci-mathematics/agda-stdlib/agda-stdlib-0.9.ebuild
@@ -1,4 +1,4 @@
-# Copyright 1999-2014 Gentoo Foundation
+# Copyright 1999-2015 Gentoo Foundation
 # Distributed under the terms of the GNU General Public License v2
 # $Id$
 
@@ -60,7 +60,7 @@ src_test() {
 
 src_install() {
 	insinto usr/share/agda-stdlib
-	export INSOPTIONS=--preserve-timestamps
+	insopts --preserve-timestamps
 	doins -r src/*
 	dodoc -r html/*
 	elisp-site-file-install "${FILESDIR}/${SITEFILE}" || die
diff --git a/sci-mathematics/agda-stdlib/agda-stdlib-2.4.2.3.ebuild b/sci-mathematics/agda-stdlib/agda-stdlib-2.4.2.3.ebuild
index 867f3557dcc36..3f5fb3f4ffe19 100644
--- a/sci-mathematics/agda-stdlib/agda-stdlib-2.4.2.3.ebuild
+++ b/sci-mathematics/agda-stdlib/agda-stdlib-2.4.2.3.ebuild
@@ -59,7 +59,7 @@ src_test() {
 
 src_install() {
 	insinto usr/share/agda-stdlib
-	export INSOPTIONS=--preserve-timestamps
+	insopts --preserve-timestamps
 	doins -r src/*
 	dodoc -r html/*
 	elisp-site-file-install "${FILESDIR}/${SITEFILE}" || die