diff -Nru ruby-sinatra-contrib-1.4.6/debian/changelog ruby-sinatra-contrib-1.4.6/debian/changelog
--- ruby-sinatra-contrib-1.4.6/debian/changelog	2015-09-09 20:29:28.000000000 +0000
+++ ruby-sinatra-contrib-1.4.6/debian/changelog	2016-02-18 15:27:40.000000000 +0000
@@ -1,3 +1,9 @@
+ruby-sinatra-contrib (1.4.6-2) unstable; urgency=medium
+
+  * Remove unavailable dependencies from the list of engines. (Closes: #812189)
+
+ -- Jérémy Bobbio <lunar@debian.org>  Thu, 18 Feb 2016 16:27:39 +0100
+
 ruby-sinatra-contrib (1.4.6-1) unstable; urgency=low
 
   * New upstream version.
diff -Nru ruby-sinatra-contrib-1.4.6/debian/patches/remove-unpackaged-dependencies.patch ruby-sinatra-contrib-1.4.6/debian/patches/remove-unpackaged-dependencies.patch
--- ruby-sinatra-contrib-1.4.6/debian/patches/remove-unpackaged-dependencies.patch	2015-09-09 20:29:28.000000000 +0000
+++ ruby-sinatra-contrib-1.4.6/debian/patches/remove-unpackaged-dependencies.patch	2016-02-18 15:27:21.000000000 +0000
@@ -95,3 +95,32 @@
 -  s.add_development_dependency "markaby"
    s.add_development_dependency "rake"
  end
+Index: git/lib/sinatra/respond_with.rb
+===================================================================
+--- git.orig/lib/sinatra/respond_with.rb
++++ git/lib/sinatra/respond_with.rb
+@@ -216,7 +216,6 @@ module Sinatra
+ 
+     def rendering_method(engine)
+       return [engine] if Sinatra::Templates.method_defined? engine
+-      return [:mab] if engine.to_sym == :markaby
+       [:render, :engine]
+     end
+ 
+@@ -238,13 +237,12 @@ module Sinatra
+ 
+     def self.engines
+       engines = {
+-        :css  => [:less,  :sass, :scss],
++        :css  => [:sass, :scss],
+         :xml  => [:builder, :nokogiri],
+         :js   => [:coffee],
+-        :html => [:erb, :erubis, :haml, :slim, :liquid, :radius, :mab,
++        :html => [:erb, :erubis, :haml, :slim, :liquid,
+           :markdown, :textile, :rdoc],
+-        :all =>  (Sinatra::Templates.instance_methods.map(&:to_sym) +
+-          [:mab] - [:find_template, :markaby]),
++        :all =>  (Sinatra::Templates.instance_methods.map(&:to_sym) - [:find_template, :less, :radius, :markaby]),
+         :json => [:yajl],
+       }
+       engines.default = []