diff --git a/railties/lib/rails/application/configuration.rb b/railties/lib/rails/application/configuration.rb
index 6455c9dae82f4a97fbde15f93f6835d620125740..3def30cbf4f9f021df53447111114503d13c1464 100644
--- a/railties/lib/rails/application/configuration.rb
+++ b/railties/lib/rails/application/configuration.rb
@@ -33,7 +33,7 @@ def initialize(*)
         @filter_parameters                       = []
         @filter_redirect                         = []
         @helpers_paths                           = []
-        @hosts                                   = Array(([IPAddr.new("0.0.0.0/0"), IPAddr.new("::/0"), ".localhost"] if Rails.env.development?))
+        @hosts                                   = Array(([".localhost", IPAddr.new("0.0.0.0/0"), IPAddr.new("::/0")] if Rails.env.development?))
         @public_file_server                      = ActiveSupport::OrderedOptions.new
         @public_file_server.enabled              = true
         @public_file_server.index_name           = "index"