diff --git a/README.de.rdoc b/README.de.rdoc
index 92f1df12..d33f088b 100644
--- a/README.de.rdoc
+++ b/README.de.rdoc
@@ -1520,6 +1520,7 @@ ohne dass sie einer Konstanten zugeordnet werden. Dies lässt sich mit
 
 Die Applikation kann mit Hilfe eines optionalen Parameters erstellt werden:
 
+  # config.ru
   require 'sinatra/base'
 
   controller = Sinatra.new do
diff --git a/README.es.rdoc b/README.es.rdoc
index 91a56906..0825d948 100644
--- a/README.es.rdoc
+++ b/README.es.rdoc
@@ -1581,6 +1581,7 @@ esto tenés <tt>Sinatra.new</tt>:
 Acepta como argumento opcional una aplicación desde la que se
 heredará:
 
+  # config.ru
   require 'sinatra/base'
 
   controller = Sinatra.new do
diff --git a/README.fr.rdoc b/README.fr.rdoc
index f6f0331f..ce430d36 100644
--- a/README.fr.rdoc
+++ b/README.fr.rdoc
@@ -1585,6 +1585,7 @@ sans avoir à les assigner à une constante, vous pouvez le faire grâce à
 
 L'application dont elle hérite peut être passé en argument optionnel :
 
+  # config.ru
   require 'sinatra/base'
 
   controleur = Sinatra.new do
diff --git a/README.ru.rdoc b/README.ru.rdoc
index 9a165a41..fd2d2f0b 100644
--- a/README.ru.rdoc
+++ b/README.ru.rdoc
@@ -1519,6 +1519,7 @@ Rack-совместимый сервер приложений.
 Этот метод может принимать аргументом приложение, от которого
 следует наследоваться:
 
+  # config.ru
   require 'sinatra/base'
 
   controller = Sinatra.new do
diff --git a/lib/sinatra/base.rb b/lib/sinatra/base.rb
index 48c0556a..8ae64668 100644
--- a/lib/sinatra/base.rb
+++ b/lib/sinatra/base.rb
@@ -1188,16 +1188,20 @@ module Sinatra
       end
 
       # Run the Sinatra app as a self-hosted server using
-      # Thin, Mongrel or WEBrick (in that order)
+      # Thin, Mongrel or WEBrick (in that order). If given a block, will call
+      # with the constructed handler once we have taken the stage.
       def run!(options={})
         set options
         handler      = detect_rack_handler
         handler_name = handler.name.gsub(/.*::/, '')
-        $stderr.puts "== Sinatra/#{Sinatra::VERSION} has taken the stage " +
-          "on #{port} for #{environment} with backup from #{handler_name}" unless handler_name =~/cgi/i
         handler.run self, :Host => bind, :Port => port do |server|
+          unless handler_name =~ /cgi/i
+            $stderr.puts "== Sinatra/#{Sinatra::VERSION} has taken the stage " +
+            "on #{port} for #{environment} with backup from #{handler_name}"
+          end
           [:INT, :TERM].each { |sig| trap(sig) { quit!(server, handler_name) } }
           set :running, true
+          yield handler if block_given?
         end
       rescue Errno::EADDRINUSE => e
         $stderr.puts "== Someone is already performing on port #{port}!"