diff --git a/dev-cpp/eigen/eigen-3.4.0-r3.ebuild b/dev-cpp/eigen/eigen-3.4.0-r3.ebuild
index 71c4ef9023419..8eb432c677b87 100644
--- a/dev-cpp/eigen/eigen-3.4.0-r3.ebuild
+++ b/dev-cpp/eigen/eigen-3.4.0-r3.ebuild
@@ -20,7 +20,7 @@ else
 		https://gitlab.com/lib${PN}/${PN}/-/archive/${PV}/${P}.tar.bz2
 		test? ( lapack? ( https://downloads.tuxfamily.org/${PN}/lapack_addons_3.4.1.tgz -> ${PN}-lapack_addons-3.4.1.tgz ) )
 	"
-	KEYWORDS="~alpha amd64 arm ~arm64 hppa ~loong ~mips ppc ppc64 ~riscv ~s390 ~sparc x86 ~amd64-linux ~x86-linux ~arm64-macos ~x64-macos"
+	KEYWORDS="~alpha amd64 arm arm64 hppa ~loong ~mips ppc ppc64 ~riscv ~s390 ~sparc x86 ~amd64-linux ~x86-linux ~arm64-macos ~x64-macos"
 fi
 
 LICENSE="MPL-2.0"