diff --git a/dev-ml/ppx_string/ppx_string-0.14.1.ebuild b/dev-ml/ppx_string/ppx_string-0.14.1.ebuild
index 6d14169a4de34..cd9fc59dacbf9 100644
--- a/dev-ml/ppx_string/ppx_string-0.14.1.ebuild
+++ b/dev-ml/ppx_string/ppx_string-0.14.1.ebuild
@@ -1,4 +1,4 @@
-# Copyright 1999-2021 Gentoo Authors
+# Copyright 1999-2022 Gentoo Authors
 # Distributed under the terms of the GNU General Public License v2
 
 EAPI=7
@@ -11,7 +11,7 @@ SRC_URI="https://github.com/janestreet/ppx_string/archive/v${PV}.tar.gz -> ${P}.
 
 LICENSE="Apache-2.0"
 SLOT="0/${PV}"
-KEYWORDS="amd64 arm arm64 ppc ppc64 x86"
+KEYWORDS="amd64 arm arm64 ~ppc ppc64 x86"
 IUSE="+ocamlopt"
 
 DEPEND="