1 files changed, 8 insertions, 1 deletions
diff --git a/ext/purelib.rb b/ext/purelib.rb
index dbe514c34a..6418fd618d 100644
--- a/ext/purelib.rb
+++ b/ext/purelib.rb
@@ -6,5 +6,12 @@ $:.each_with_index {|path, index|
   end
 }
 if nul
-  $:[nul..-1] = ["."]
+  removed, $:[nul..-1] = $:[nul..-1], ["."]
+  if defined?(Gem::QuickLoader)
+    removed.each do |path|
+      # replaces a fake rubygems by gem_prelude.rb with an alternative path
+      index = $".index(File.join(path, 'rubygems.rb'))
+      $"[index] = Gem::QuickLoader.path_to_full_rubygems_library if index
+    end
+  end
 end