diff --git a/dev-ruby/rss/rss-0.3.2.ebuild b/dev-ruby/rss/rss-0.3.2.ebuild
index 1fa8314af3be9..564613a97b061 100644
--- a/dev-ruby/rss/rss-0.3.2.ebuild
+++ b/dev-ruby/rss/rss-0.3.2.ebuild
@@ -3,7 +3,7 @@
 
 EAPI=8
 
-USE_RUBY="ruby32 ruby33 ruby34"
+USE_RUBY="ruby32 ruby33 ruby34 ruby40"
 
 RUBY_FAKEGEM_EXTRADOC="NEWS.md README.md"
 RUBY_FAKEGEM_GEMSPEC="rss.gemspec"