diff --git a/dev-tex/tth/tth-4.08.ebuild b/dev-tex/tth/tth-4.08.ebuild
index 7cffa7854d62c..120065be59cd5 100644
--- a/dev-tex/tth/tth-4.08.ebuild
+++ b/dev-tex/tth/tth-4.08.ebuild
@@ -11,7 +11,7 @@ SRC_URI="mirror://sourceforge/${PN}/${PN}${PV}.tar.gz"
 
 SLOT="0"
 LICENSE="GPL-2"
-KEYWORDS="amd64 ~arm ~hppa ppc ppc64 x86"
+KEYWORDS="amd64 ~arm ~arm64 ~hppa ppc ppc64 x86"
 
 DEPEND=""
 RDEPEND="