1 files changed, 4 insertions, 4 deletions
diff --git a/spec/ruby/core/kernel/sub_spec.rb b/spec/ruby/core/kernel/sub_spec.rb
index 78e5eec4a8..b175e371dc 100644
--- a/spec/ruby/core/kernel/sub_spec.rb
+++ b/spec/ruby/core/kernel/sub_spec.rb
@@ -1,18 +1,18 @@
-require File.expand_path('../../../spec_helper', __FILE__)
-require File.expand_path('../fixtures/classes', __FILE__)
+require_relative '../../spec_helper'
+require_relative 'fixtures/classes'
 
 # FIXME: These methods exist only when the -n or -p option is passed to
 # ruby, but we currently don't have a way of specifying that.
 ruby_version_is ""..."1.9" do
   describe "Kernel#sub" do
     it "is a private method" do
-      Kernel.should have_private_instance_method(:sub)
+      Kernel.private_instance_methods(false).should.include?(:sub)
     end
   end
 
   describe "Kernel#sub!" do
     it "is a private method" do
-      Kernel.should have_private_instance_method(:sub!)
+      Kernel.private_instance_methods(false).should.include?(:sub!)
     end
   end