diff --git a/railties/lib/rails/rack/static.rb b/railties/lib/rails/rack/static.rb
index d6b8face27..ebe8b9e103 100644
--- a/railties/lib/rails/rack/static.rb
+++ b/railties/lib/rails/rack/static.rb
@@ -1,5 +1,5 @@
 require 'action_dispatch'
 
 module Rails::Rack
-  Static = Deprecation::DeprecatedConstantProxy.new('Rails::Rack::Static', ActionDispatch::Static)
+  Static = ActiveSupport::Deprecation::DeprecatedConstantProxy.new('Rails::Rack::Static', ActionDispatch::Static)
 end