1 files changed, 1 insertions, 1 deletions
diff --git a/actionpack/Rakefile b/actionpack/Rakefile
index 567d7b589f..69fad6b579 100644
--- a/actionpack/Rakefile
+++ b/actionpack/Rakefile
@@ -24,7 +24,7 @@ namespace :test do
   task :isolated do
     ruby = File.join(*RbConfig::CONFIG.values_at('bindir', 'RUBY_INSTALL_NAME'))
     Dir.glob("test/{abstract,controller,dispatch}/**/*_test.rb").all? do |file|
-      sh(ruby, '-Ilib:test', file)
+      sh(ruby, '-w', '-Ilib:test', file)
     end or raise "Failures"
   end
 end