diff --git a/dev-ml/lwt/lwt-5.3.0-r1.ebuild b/dev-ml/lwt/lwt-5.3.0-r1.ebuild
index 3105bdffee5cb..a5de9c42f1ebf 100644
--- a/dev-ml/lwt/lwt-5.3.0-r1.ebuild
+++ b/dev-ml/lwt/lwt-5.3.0-r1.ebuild
@@ -11,7 +11,7 @@ HOMEPAGE="http://ocsigen.org/lwt"
 
 SLOT="0/${PV}"
 LICENSE="LGPL-2.1-with-linking-exception"
-KEYWORDS="~amd64 ~arm ~arm64 ~ppc ~x86"
+KEYWORDS="~amd64 ~arm ~arm64 ~ppc ~ppc64 ~x86"
 IUSE="+ocamlopt"
 
 DEPEND="