diff --git a/dev-ruby/timeout/timeout-0.4.3.ebuild b/dev-ruby/timeout/timeout-0.4.3.ebuild
index 80c1ad26dfd27..6d08013c63fb2 100644
--- a/dev-ruby/timeout/timeout-0.4.3.ebuild
+++ b/dev-ruby/timeout/timeout-0.4.3.ebuild
@@ -2,7 +2,7 @@
 # Distributed under the terms of the GNU General Public License v2
 
 EAPI=8
-USE_RUBY="ruby31 ruby32 ruby33"
+USE_RUBY="ruby31 ruby32 ruby33 ruby34"
 
 RUBY_FAKEGEM_BINWRAP=""
 RUBY_FAKEGEM_EXTRADOC="README.md"