diff --git a/dev-ruby/concurrent-ruby/concurrent-ruby-1.0.1.ebuild b/dev-ruby/concurrent-ruby/concurrent-ruby-1.0.1.ebuild
index 6fe323ef0095a..95ef3b21c2ed3 100644
--- a/dev-ruby/concurrent-ruby/concurrent-ruby-1.0.1.ebuild
+++ b/dev-ruby/concurrent-ruby/concurrent-ruby-1.0.1.ebuild
@@ -19,7 +19,7 @@ SRC_URI="https://github.com/ruby-concurrency/concurrent-ruby/archive/v${PV}.tar.
 
 LICENSE="MIT"
 SLOT="1"
-KEYWORDS="~amd64"
+KEYWORDS="~amd64 ~arm"
 IUSE=""
 
 all_ruby_prepare() {