1 files changed, 14 insertions, 0 deletions
diff --git a/lib/bundler/installer/standalone.rb b/lib/bundler/installer/standalone.rb
index 0720d6d38a..11d5c490ab 100644
--- a/lib/bundler/installer/standalone.rb
+++ b/lib/bundler/installer/standalone.rb
@@ -15,6 +15,7 @@ module Bundler
         file.puts "ruby_engine = RUBY_ENGINE"
         file.puts "ruby_version = RbConfig::CONFIG[\"ruby_version\"]"
         file.puts "path = File.expand_path('..', __FILE__)"
+        file.puts reverse_rubygems_kernel_mixin
         paths.each do |path|
           file.puts %($:.unshift File.expand_path("\#{path}/#{path}"))
         end
@@ -48,5 +49,18 @@ module Bundler
       error_message = "#{spec.name} #{spec.version} has an invalid gemspec"
       raise Gem::InvalidSpecificationException.new(error_message)
     end
+
+    def reverse_rubygems_kernel_mixin
+      <<~END
+      kernel = (class << ::Kernel; self; end)
+      [kernel, ::Kernel].each do |k|
+        if k.private_method_defined?(:gem_original_require)
+          k.send(:remove_method, :require)
+          k.send(:define_method, :require, k.instance_method(:gem_original_require))
+          k.send(:private, :require)
+        end
+      end
+      END
+    end
   end
 end