diff --git a/dev-ruby/diff-lcs/diff-lcs-1.3.ebuild b/dev-ruby/diff-lcs/diff-lcs-1.3.ebuild
index 260d8aeedd550..7b1451f64f58e 100644
--- a/dev-ruby/diff-lcs/diff-lcs-1.3.ebuild
+++ b/dev-ruby/diff-lcs/diff-lcs-1.3.ebuild
@@ -16,5 +16,5 @@ HOMEPAGE="https://github.com/halostatue/diff-lcs"
 
 LICENSE="|| ( MIT Ruby GPL-2 )"
 SLOT="0"
-KEYWORDS="~alpha ~amd64 ~arm ~hppa ~ia64 ~ppc ~ppc64 ~sparc ~x86 ~x86-fbsd ~amd64-linux ~x86-linux ~ppc-macos ~x64-macos ~x86-macos ~sparc-solaris ~sparc64-solaris ~x64-solaris ~x86-solaris"
+KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~hppa ~ia64 ~ppc ~ppc64 ~sparc ~x86 ~x86-fbsd ~amd64-linux ~x86-linux ~ppc-macos ~x64-macos ~x86-macos ~sparc-solaris ~sparc64-solaris ~x64-solaris ~x86-solaris"
 IUSE=""