diff --git a/dev-python/sphinx/sphinx-3.1.2.ebuild b/dev-python/sphinx/sphinx-3.1.2.ebuild
index 02e54fb7e8fda..d638f0966181f 100644
--- a/dev-python/sphinx/sphinx-3.1.2.ebuild
+++ b/dev-python/sphinx/sphinx-3.1.2.ebuild
@@ -16,7 +16,7 @@ SRC_URI="mirror://pypi/S/${PN^}/${P^}.tar.gz"
 
 LICENSE="BSD"
 SLOT="0"
-KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~hppa ~ia64 ~m68k ~mips ~ppc ~ppc64 ~s390 ~sparc ~x86 ~amd64-linux ~x86-linux ~ppc-macos ~x64-macos ~x86-macos ~x64-solaris"
+KEYWORDS="~alpha ~amd64 arm ~arm64 ~hppa ~ia64 ~m68k ~mips ~ppc ~ppc64 ~s390 ~sparc ~x86 ~amd64-linux ~x86-linux ~ppc-macos ~x64-macos ~x86-macos ~x64-solaris"
 IUSE="doc latex test"
 RESTRICT="!test? ( test )"