From c9c0e552ed7f20efc9e9b62fbe00d006fbd455ec Mon Sep 17 00:00:00 2001
From: Konstantin Haase <konstantin.mailinglists@googlemail.com>
Date: Tue, 26 Feb 2013 16:02:18 +1100
Subject: [PATCH] make not_found also trigger on NotFound exception directly,
 fixes #500

---
 lib/sinatra/base.rb | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/lib/sinatra/base.rb b/lib/sinatra/base.rb
index d166980c..ed5d4ebd 100644
--- a/lib/sinatra/base.rb
+++ b/lib/sinatra/base.rb
@@ -1180,7 +1180,8 @@ module Sinatra
 
       # Sugar for `error(404) { ... }`
       def not_found(&block)
-        error 404, &block
+        error(404, &block)
+        error(Sinatra::NotFound, &block)
       end
 
       # Define a named template. The block must return the template source.