diff --git a/dev-ruby/rspec-mocks/rspec-mocks-3.4.1.ebuild b/dev-ruby/rspec-mocks/rspec-mocks-3.4.1.ebuild
index a4baa26625247..892dc19e58adc 100644
--- a/dev-ruby/rspec-mocks/rspec-mocks-3.4.1.ebuild
+++ b/dev-ruby/rspec-mocks/rspec-mocks-3.4.1.ebuild
@@ -3,7 +3,7 @@
 # $Id$
 
 EAPI=5
-USE_RUBY="ruby20 ruby21 ruby22"
+USE_RUBY="ruby20 ruby21 ruby22 ruby23"
 
 RUBY_FAKEGEM_RECIPE_TEST="rspec3"