diff --git a/dev-ruby/RubyInline/RubyInline-3.12.3.ebuild b/dev-ruby/RubyInline/RubyInline-3.12.3.ebuild
index 2edf86f3269df..2e8e7a82437ee 100644
--- a/dev-ruby/RubyInline/RubyInline-3.12.3.ebuild
+++ b/dev-ruby/RubyInline/RubyInline-3.12.3.ebuild
@@ -4,7 +4,7 @@
 
 EAPI=5
 
-USE_RUBY="ruby20"
+USE_RUBY="ruby20 ruby21"
 
 RUBY_FAKEGEM_RECIPE_DOC="rdoc"
 RUBY_FAKEGEM_DOCDIR="doc"