diff --git a/spec/helpers/action_view_extension_spec.rb b/spec/helpers/action_view_extension_spec.rb
index 59650f8..b050af5 100644
--- a/spec/helpers/action_view_extension_spec.rb
+++ b/spec/helpers/action_view_extension_spec.rb
@@ -1,6 +1,9 @@
 require 'spec_helper'
 
 describe 'Kaminari::ActionViewExtension', :if => defined?(::Rails::Railtie) do
+  before do
+    helper.output_buffer = ::ActionView::OutputBuffer.new
+  end
   describe '#paginate' do
     before do
       50.times {|i| User.create! :name => "user#{i}"}
diff --git a/spec/helpers/helpers_spec.rb b/spec/helpers/helpers_spec.rb
index bd03db0..15e6bc9 100644
--- a/spec/helpers/helpers_spec.rb
+++ b/spec/helpers/helpers_spec.rb
@@ -9,6 +9,7 @@ describe 'Kaminari::Helpers::Paginator' do
       options { {} }
       url_for {|h| "/foo?page=#{h[:page]}"}
       link_to { "<a href='#'>link</a>" }
+      output_buffer { defined?(ActionView) ? ::ActionView::OutputBuffer.new : ::ActiveSupport::SafeBuffer.new }
     end
     r
   end