diff --git a/railties/lib/rails/generators/rails/plugin/plugin_generator.rb b/railties/lib/rails/generators/rails/plugin/plugin_generator.rb
index c7cfa74bda8e759259660946b6dcb1102d927937..22604d4d9d2981681b234e2dd0880f98f8a28813 100644
--- a/railties/lib/rails/generators/rails/plugin/plugin_generator.rb
+++ b/railties/lib/rails/generators/rails/plugin/plugin_generator.rb
@@ -415,7 +415,6 @@ def rakefile_test_tasks
 require 'rake/testtask'
 
 Rake::TestTask.new(:test) do |t|
-  t.libs << 'lib'
   t.libs << 'test'
   t.pattern = 'test/**/*_test.rb'
   t.verbose = false