diff --git a/konacha.gemspec b/konacha.gemspec
index 138e64c..ffd4edd 100644
--- a/konacha.gemspec
+++ b/konacha.gemspec
@@ -29,7 +29,7 @@ the asset pipeline and engines.}
   gem.add_dependency "tilt"
 
   gem.add_development_dependency "jquery-rails"
-  gem.add_development_dependency 'rspec-rails', '~> 3.5', '>= 3.5.2'
+  gem.add_development_dependency "rspec-rails", "~> 3.5", ">= 3.5.2"
   gem.add_development_dependency "capybara-firebug", "~> 1.1"
   gem.add_development_dependency "coffee-script"
   gem.add_development_dependency "ejs"