diff --git a/dev-python/mrcfile/mrcfile-1.4.3.ebuild b/dev-python/mrcfile/mrcfile-1.4.3.ebuild
index 2abead460e534..48880b375bb0f 100644
--- a/dev-python/mrcfile/mrcfile-1.4.3.ebuild
+++ b/dev-python/mrcfile/mrcfile-1.4.3.ebuild
@@ -20,7 +20,7 @@ SRC_URI="
 
 LICENSE="BSD"
 SLOT="0"
-KEYWORDS="~amd64"
+KEYWORDS="~amd64 ~arm64"
 
 RDEPEND="
 	>=dev-python/numpy-1.16.0[${PYTHON_USEDEP}]