diff --git a/ext/io/console/extconf.rb b/ext/io/console/extconf.rb
index 32ad9d3311..e8c5923b18 100644
--- a/ext/io/console/extconf.rb
+++ b/ext/io/console/extconf.rb
@@ -1,7 +1,7 @@
 # frozen_string_literal: false
 require 'mkmf'
 
-ok = true if RUBY_ENGINE == "ruby"
+ok = true if RUBY_ENGINE == "ruby" || RUBY_ENGINE == "truffleruby"
 hdr = nil
 case
 when macro_defined?("_WIN32", "")