diff --git a/dev-ruby/ruby-hmac/ruby-hmac-0.4.0-r1.ebuild b/dev-ruby/ruby-hmac/ruby-hmac-0.4.0-r1.ebuild
index 8405060c6da36..da5f862af97e5 100644
--- a/dev-ruby/ruby-hmac/ruby-hmac-0.4.0-r1.ebuild
+++ b/dev-ruby/ruby-hmac/ruby-hmac-0.4.0-r1.ebuild
@@ -3,7 +3,7 @@
 # $Id$
 
 EAPI=5
-USE_RUBY="ruby20 ruby21 ruby22"
+USE_RUBY="ruby20 ruby21 ruby22 ruby23"
 
 RUBY_FAKEGEM_TASK_DOC="docs"
 RUBY_FAKEGEM_EXTRADOC="History.txt README.txt"