diff --git a/dev-python/sphinxcontrib-blockdiag/sphinxcontrib-blockdiag-1.5.5-r1.ebuild b/dev-python/sphinxcontrib-blockdiag/sphinxcontrib-blockdiag-1.5.5-r1.ebuild
index 35d6d56f18655..fc5d9a3d0f2d3 100644
--- a/dev-python/sphinxcontrib-blockdiag/sphinxcontrib-blockdiag-1.5.5-r1.ebuild
+++ b/dev-python/sphinxcontrib-blockdiag/sphinxcontrib-blockdiag-1.5.5-r1.ebuild
@@ -16,7 +16,7 @@ LICENSE="BSD"
 
 SLOT="0"
 
-KEYWORDS="~amd64 ~arm ~x86 ~amd64-linux ~x86-linux"
+KEYWORDS="~amd64 ~arm ~arm64 ~x86 ~amd64-linux ~x86-linux"
 
 IUSE=""