diff --git a/dev-ruby/rdoc/rdoc-6.6.3.1-r1.ebuild b/dev-ruby/rdoc/rdoc-6.6.3.1-r1.ebuild
index 50e357c8cb974..0d616f622fbfd 100644
--- a/dev-ruby/rdoc/rdoc-6.6.3.1-r1.ebuild
+++ b/dev-ruby/rdoc/rdoc-6.6.3.1-r1.ebuild
@@ -20,7 +20,7 @@ HOMEPAGE="https://github.com/ruby/rdoc/"
 SRC_URI="https://github.com/ruby/rdoc/archive/v${PV}.tar.gz -> ${P}.tar.gz"
 
 LICENSE="|| ( GPL-2 Ruby-BSD )"
-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"
 SLOT="0"
 IUSE="doc"