diff --git a/dev-ruby/moneta/moneta-0.8.0.ebuild b/dev-ruby/moneta/moneta-0.8.0.ebuild
index a5f9ad7ed645b..f21ca0508ea00 100644
--- a/dev-ruby/moneta/moneta-0.8.0.ebuild
+++ b/dev-ruby/moneta/moneta-0.8.0.ebuild
@@ -3,7 +3,7 @@
 # $Id$
 
 EAPI=5
-USE_RUBY="ruby19 ruby20"
+USE_RUBY="ruby19 ruby20 ruby21"
 
 RUBY_FAKEGEM_TASK_DOC=""
 RUBY_FAKEGEM_RECIPE_TEST="none"