diff --git a/dev-ruby/erb/erb-6.0.1.ebuild b/dev-ruby/erb/erb-6.0.1.ebuild
index df7e56f8b2aa1..13b7d19abc48a 100644
--- a/dev-ruby/erb/erb-6.0.1.ebuild
+++ b/dev-ruby/erb/erb-6.0.1.ebuild
@@ -3,7 +3,7 @@
 
 EAPI=8
 
-USE_RUBY="ruby32 ruby33 ruby34"
+USE_RUBY="ruby32 ruby33 ruby34 ruby40"
 
 # There is an erb binary in exe but that would conflict with the ruby
 # built-in version and other slots.