diff --git a/dev-ruby/racc/racc-1.8.1.ebuild b/dev-ruby/racc/racc-1.8.1.ebuild
index 31d9b3dba1633..8160aefb59f95 100644
--- a/dev-ruby/racc/racc-1.8.1.ebuild
+++ b/dev-ruby/racc/racc-1.8.1.ebuild
@@ -3,7 +3,7 @@
 
 EAPI=8
 
-USE_RUBY="ruby31 ruby32 ruby33"
+USE_RUBY="ruby31 ruby32 ruby33 ruby34"
 
 RUBY_FAKEGEM_RECIPE_DOC="none"
 RUBY_FAKEGEM_EXTRADOC="README.rdoc README.ja.rdoc TODO ChangeLog"