diff --git a/dev-python/cython/cython-3.1.0_beta1-r1.ebuild b/dev-python/cython/cython-3.1.0_beta1-r1.ebuild
index c097ca9b2e3cf..763a686503d77 100644
--- a/dev-python/cython/cython-3.1.0_beta1-r1.ebuild
+++ b/dev-python/cython/cython-3.1.0_beta1-r1.ebuild
@@ -20,6 +20,7 @@ HOMEPAGE="
 
 LICENSE="Apache-2.0"
 SLOT="0"
+KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~hppa ~loong ~m68k ~mips ~ppc ~ppc64 ~riscv ~s390 ~sparc ~x86 ~amd64-linux ~x86-linux ~arm64-macos ~ppc-macos ~x64-macos ~x64-solaris"
 IUSE="test"
 RESTRICT="!test? ( test )"