diff --git a/dev-cpp/atkmm/atkmm-2.28.2.ebuild b/dev-cpp/atkmm/atkmm-2.28.2.ebuild
index e247f63c3ee20..1554c916b9ce9 100644
--- a/dev-cpp/atkmm/atkmm-2.28.2.ebuild
+++ b/dev-cpp/atkmm/atkmm-2.28.2.ebuild
@@ -11,7 +11,7 @@ HOMEPAGE="https://www.gtkmm.org"
 
 LICENSE="LGPL-2.1+"
 SLOT="0"
-KEYWORDS="~alpha amd64 arm arm64 ~hppa ~ia64 ppc ppc64 ~riscv sparc x86 ~amd64-linux ~x86-linux ~sparc-solaris ~x86-solaris"
+KEYWORDS="~alpha amd64 arm arm64 ~hppa ~ia64 ~loong ppc ppc64 ~riscv sparc x86 ~amd64-linux ~x86-linux ~sparc-solaris ~x86-solaris"
 IUSE="doc"
 
 DEPEND="