diff --git a/test/prism/ractor_test.rb b/test/prism/ractor_test.rb
index fa53780744..55ff723395 100644
--- a/test/prism/ractor_test.rb
+++ b/test/prism/ractor_test.rb
@@ -1,6 +1,6 @@
 # frozen_string_literal: true
 
-return if !defined?(Ractor) || !defined?(fork)
+return unless defined?(Ractor) && Process.respond_to?(:fork)
 
 require_relative "test_helper"