diff --git a/dev-ruby/test-unit-rr/test-unit-rr-1.0.5.ebuild b/dev-ruby/test-unit-rr/test-unit-rr-1.0.5.ebuild
index b861d556f294b..9b9e1e8fc8b78 100644
--- a/dev-ruby/test-unit-rr/test-unit-rr-1.0.5.ebuild
+++ b/dev-ruby/test-unit-rr/test-unit-rr-1.0.5.ebuild
@@ -3,7 +3,7 @@
 
 EAPI=5
 
-USE_RUBY="ruby20 ruby21 ruby22 ruby23"
+USE_RUBY="ruby21 ruby22 ruby23 ruby24"
 
 RUBY_FAKEGEM_TASK_TEST=""