diff --git a/dev-ruby/rdoc/rdoc-6.8.1.ebuild b/dev-ruby/rdoc/rdoc-6.8.1.ebuild
index 5175b785a686f..1f7602e8e7c5f 100644
--- a/dev-ruby/rdoc/rdoc-6.8.1.ebuild
+++ b/dev-ruby/rdoc/rdoc-6.8.1.ebuild
@@ -21,7 +21,7 @@ SRC_URI="https://github.com/ruby/rdoc/archive/v${PV}.tar.gz -> ${P}.tar.gz"
 
 LICENSE="|| ( GPL-2 Ruby-BSD )"
 SLOT="0"
-KEYWORDS="~alpha amd64 arm arm64 ~hppa ~loong ~mips ~ppc ppc64 ~riscv ~s390 sparc x86 ~amd64-linux ~x86-linux ~arm64-macos ~ppc-macos ~x64-macos ~x64-solaris"
+KEYWORDS="~alpha amd64 arm arm64 ~hppa ~loong ~mips ppc ppc64 ~riscv ~s390 sparc x86 ~amd64-linux ~x86-linux ~arm64-macos ~ppc-macos ~x64-macos ~x64-solaris"
 IUSE="doc"
 
 RDEPEND=">=app-eselect/eselect-ruby-20181225"