lib/rubygems/ext/rake_builder.rb in rubygems-update-3.0.9 vs lib/rubygems/ext/rake_builder.rb in rubygems-update-3.1.0.pre1

@@ -18,10 +18,10 @@
 
     if rake
       rake = rake.shellsplit
     else
       begin
-        rake = [Gem.ruby, "-rrubygems", Gem.bin_path('rake', 'rake')]
+        rake = [Gem.ruby, "-I#{File.expand_path("..", __dir__)}", "-rrubygems", Gem.bin_path('rake', 'rake')]
       rescue Gem::Exception
         rake = [Gem.default_exec_format % 'rake']
       end
     end