diff --git a/dev-ruby/io-console/io-console-0.8.2.ebuild b/dev-ruby/io-console/io-console-0.8.2.ebuild
index 9578aaf475c77..3c9fea29b3ceb 100644
--- a/dev-ruby/io-console/io-console-0.8.2.ebuild
+++ b/dev-ruby/io-console/io-console-0.8.2.ebuild
@@ -3,7 +3,7 @@
 
 EAPI=8
 
-USE_RUBY="ruby32 ruby33 ruby34"
+USE_RUBY="ruby32 ruby33 ruby34 ruby40"
 
 RUBY_FAKEGEM_EXTENSIONS=(ext/io/console/extconf.rb)
 RUBY_FAKEGEM_EXTENSION_LIBDIR="lib/io"