diff --git a/sys-apps/memtester/memtester-4.5.1.ebuild b/sys-apps/memtester/memtester-4.5.1.ebuild
index 2084213eb705b..f4e51b6711df5 100644
--- a/sys-apps/memtester/memtester-4.5.1.ebuild
+++ b/sys-apps/memtester/memtester-4.5.1.ebuild
@@ -13,7 +13,7 @@ SRC_URI="
 
 LICENSE="GPL-2"
 SLOT="0"
-KEYWORDS="~alpha ~amd64 ~arm ~ia64 ~mips ~ppc ~ppc64 ~sparc ~x86"
+KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~ia64 ~mips ~ppc ~ppc64 ~sparc ~x86"
 
 src_configure() {
 	echo "$(tc-getCC) ${CFLAGS} ${CPPFLAGS} -DPOSIX -c" > conf-cc || die