diff --git a/lib/ffi.rb b/lib/ffi.rb
index bcbc59c46..64f3871b1 100644
--- a/lib/ffi.rb
+++ b/lib/ffi.rb
@@ -8,10 +8,14 @@
 
   require 'ffi/ffi'
 
-elsif RUBY_ENGINE == 'jruby' && Gem::Version.new(JRUBY_VERSION) >= Gem::Version.new("9.3.pre")
+elsif RUBY_ENGINE == 'jruby' && Gem::Version.new(RUBY_ENGINE_VERSION) >= Gem::Version.new("9.3.pre")
   JRuby::Util.load_ext("org.jruby.ext.ffi.FFIService")
   require 'ffi/ffi'
 
+elsif RUBY_ENGINE == 'truffleruby' && Gem::Version.new(RUBY_ENGINE_VERSION) >= Gem::Version.new("20.1.0")
+  require 'truffleruby/ffi_backend'
+  require 'ffi/ffi'
+
 else
   # Remove the ffi gem dir from the load path, then reload the internal ffi implementation
   $LOAD_PATH.delete(File.dirname(__FILE__))