diff --git a/kaminari.gemspec b/kaminari.gemspec
index 8942bb5..79aa098 100644
--- a/kaminari.gemspec
+++ b/kaminari.gemspec
@@ -24,6 +24,7 @@ Gem::Specification.new do |s|
   s.add_dependency 'kaminari-activerecord'
 
   s.add_development_dependency 'bundler', '>= 1.0.0'
+  s.add_development_dependency 'rake', '>= 0'
   s.add_development_dependency 'rspec', '~> 2.14.1'
   s.add_development_dependency 'rr', '>= 0'
   s.add_development_dependency 'capybara', '>= 1.0'