diff --git a/lib/rubygems/package.rb b/lib/rubygems/package.rb
index b944a050a390..060c82d02ce2 100644
--- a/lib/rubygems/package.rb
+++ b/lib/rubygems/package.rb
@@ -42,6 +42,7 @@
 # #files are the files in the .gem tar file, not the Ruby files in the gem
 # #extract_files and #contents automatically call #verify
 
+require "rubygems"
 require 'rubygems/security'
 require 'rubygems/specification'
 require 'rubygems/user_interaction'
diff --git a/test/rubygems/test_project_sanity.rb b/test/rubygems/test_project_sanity.rb
index 6a9eb3b83f2c..ca14e3fbb476 100644
--- a/test/rubygems/test_project_sanity.rb
+++ b/test/rubygems/test_project_sanity.rb
@@ -1,8 +1,9 @@
 # frozen_string_literal: true
 
+require "rubygems/test_case"
 require "open3"
 
-class TestProjectSanity < Minitest::Test
+class TestProjectSanity < Gem::TestCase
 
   def test_manifest_is_up_to_date
     skip unless File.exist?(File.expand_path("../../../Rakefile", __FILE__))
@@ -12,4 +13,10 @@ def test_manifest_is_up_to_date
     assert status.success?, "Expected Manifest.txt to be up to date, but it's not. Run `rake update_manifest` to sync it."
   end
 
+  def test_require_rubygems_package
+    err, status = Open3.capture2e(*ruby_with_rubygems_in_load_path, "--disable-gems", "-e", "'require \"rubygems/package\"'")
+
+    assert status.success?, err
+  end
+
 end