3 files changed, 5 insertions, 5 deletions
diff --git a/lib/bundler/plugin/api.rb b/lib/bundler/plugin/api.rb
index a2d5cbb4ac..ee2bffe3ab 100644
--- a/lib/bundler/plugin/api.rb
+++ b/lib/bundler/plugin/api.rb
@@ -23,7 +23,7 @@ module Bundler
   # and hooks).
   module Plugin
     class API
-      autoload :Source, "bundler/plugin/api/source"
+      autoload :Source, File.expand_path("api/source", __dir__)
 
       # The plugins should declare that they handle a command through this helper.
       #
diff --git a/lib/bundler/plugin/index.rb b/lib/bundler/plugin/index.rb
index faabf3a8d1..2d70a046bb 100644
--- a/lib/bundler/plugin/index.rb
+++ b/lib/bundler/plugin/index.rb
@@ -139,7 +139,7 @@ module Bundler
 
           data = index_f.read
 
-          require "bundler/yaml_serializer"
+          require_relative "../yaml_serializer"
           index = YAMLSerializer.load(data)
 
           @commands.merge!(index["commands"])
@@ -162,7 +162,7 @@ module Bundler
           "sources"      => @sources,
         }
 
-        require "bundler/yaml_serializer"
+        require_relative "../yaml_serializer"
         SharedHelpers.filesystem_access(index_file) do |index_f|
           FileUtils.mkdir_p(index_f.dirname)
           File.open(index_f, "w") {|f| f.puts YAMLSerializer.dump(index) }
diff --git a/lib/bundler/plugin/installer.rb b/lib/bundler/plugin/installer.rb
index 4a262efac2..bcea3f0e45 100644
--- a/lib/bundler/plugin/installer.rb
+++ b/lib/bundler/plugin/installer.rb
@@ -8,8 +8,8 @@ module Bundler
   # are heavily dependent on the Gemfile.
   module Plugin
     class Installer
-      autoload :Rubygems, "bundler/plugin/installer/rubygems"
-      autoload :Git,      "bundler/plugin/installer/git"
+      autoload :Rubygems, File.expand_path("installer/rubygems", __dir__)
+      autoload :Git,      File.expand_path("installer/git", __dir__)
 
       def install(names, options)
         check_sources_consistency!(options)