diff --git a/dev-haskell/constraints/constraints-0.13.3.ebuild b/dev-haskell/constraints/constraints-0.13.3.ebuild
index 90010741f1d4a..ca6f74cc537c8 100644
--- a/dev-haskell/constraints/constraints-0.13.3.ebuild
+++ b/dev-haskell/constraints/constraints-0.13.3.ebuild
@@ -14,7 +14,7 @@ SRC_URI="https://hackage.haskell.org/package/${P}/${P}.tar.gz"
 
 LICENSE="BSD-2"
 SLOT="0/${PV}"
-KEYWORDS="~amd64 ~ppc64 ~x86"
+KEYWORDS="~amd64 ~arm64 ~ppc64 ~x86"
 
 RDEPEND=">=dev-haskell/hashable-1.2:=[profile?] <dev-haskell/hashable-1.5:=[profile?]
 	>=dev-haskell/transformers-compat-0.5:=[profile?] <dev-haskell/transformers-compat-1:=[profile?]