diff --git a/config.ru b/config.ru
index 2a89752d..ca23714b 100644
--- a/config.ru
+++ b/config.ru
@@ -1,4 +1,9 @@
 # This file is used by Rack-based servers to start the application.
 
 require ::File.expand_path('../config/environment',  __FILE__)
-run RedmineApp::Application
+
+#run RedmineApp::Application
+
+map ActionController::Base.config.relative_url_root || "/" do
+  run RedmineApp::Application
+end
diff --git a/config/additional_environment.rb b/config/additional_environment.rb
index 2a317a39..6654da90 100644
--- a/config/additional_environment.rb
+++ b/config/additional_environment.rb
@@ -7,4 +7,4 @@
 #   config.log_level = :debug
 #   ...
 #
-
+#config.relative_url_root = '/socialforge'