diff --git a/dev-ruby/maildir/maildir-2.2.3-r1.ebuild b/dev-ruby/maildir/maildir-2.2.3-r1.ebuild
index 9cb2005f0e1d6..0f664795b5b28 100644
--- a/dev-ruby/maildir/maildir-2.2.3-r1.ebuild
+++ b/dev-ruby/maildir/maildir-2.2.3-r1.ebuild
@@ -2,7 +2,8 @@
 # Distributed under the terms of the GNU General Public License v2
 
 EAPI=8
-USE_RUBY="ruby31 ruby32 ruby33"
+
+USE_RUBY="ruby32 ruby33 ruby34"
 
 RUBY_FAKEGEM_EXTRAINSTALL="README.rdoc"