diff --git a/lib/mini_racer.rb b/lib/mini_racer.rb
index 0f1e94d..3156a20 100644
--- a/lib/mini_racer.rb
+++ b/lib/mini_racer.rb
@@ -3,7 +3,7 @@
 
 if RUBY_ENGINE == "truffleruby"
   require "mini_racer/truffleruby"
-elsif false
+elsif true
   require "mini_racer_loader"
   ext_filename = "mini_racer_extension.#{RbConfig::CONFIG["DLEXT"]}"
   ext_path =